xworm | 99bf031f23b1759702a56ccfc9425f0a063654dcc4a94d8feeb89792c82f3082

Resubmissions

01-07-2024 12:05

240701-n9bt2s1akf 10

01-07-2024 11:59

240701-n5w97atdqr 10

Analysis

max time kernel
118s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 11:59

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General

Target

fix.exe
Size

35KB
MD5

83bbe29b99a54bad48074efb72ce1fcc
SHA1

421deeba13130a8eebacc8c7f48f28e6fe8485f2
SHA256

99bf031f23b1759702a56ccfc9425f0a063654dcc4a94d8feeb89792c82f3082
SHA512

67fe2ac907c297cd3c4d1af7f80257b468bc4e73cab428568ea1238d41cd8c43262765a0b0d43b2accb003901a66e9e7ec162fefda2fd89040697e1e168ac27f
SSDEEP

768:ChiLce92aOrsQiUy5FyS9ZL6LOjhibold:ChkceWsQi5FT9ZL6LOjGo7

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

20.ip.gl.ply.gg:53765

Mutex

JCfj6Aifpywc6Ul9

Attributes

Install_directory
%AppData%
install_file
svchost.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2904-1-0x0000000000F80000-0x0000000000F90000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
2768	powershell.exe
2412	powershell.exe
2584	powershell.exe
2808	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fix.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	fix.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

chrome.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exechrome.exe

pid	Process
2584	powershell.exe
2808	powershell.exe
2768	powershell.exe
2412	powershell.exe
2280	chrome.exe
2280	chrome.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

Processes:

fix.exepowershell.exepowershell.exepowershell.exepowershell.exechrome.exe

description	pid	Process
Token: SeDebugPrivilege	2904	fix.exe
Token: SeDebugPrivilege	2584	powershell.exe
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	2768	powershell.exe
Token: SeDebugPrivilege	2412	powershell.exe
Token: SeDebugPrivilege	2904	fix.exe
Token: SeShutdownPrivilege	2280	chrome.exe
Token: SeShutdownPrivilege	2280	chrome.exe
Token: SeShutdownPrivilege	2280	chrome.exe
Token: SeShutdownPrivilege	2280	chrome.exe
Token: SeShutdownPrivilege	2280	chrome.exe
Token: SeShutdownPrivilege	2280	chrome.exe
Token: SeShutdownPrivilege	2280	chrome.exe
Token: SeShutdownPrivilege	2280	chrome.exe

Suspicious use of FindShellTrayWindow 35 IoCs

Processes:

chrome.exe

pid	Process
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

Processes:

chrome.exe

pid	Process
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe
2280	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

fix.exechrome.exe

description	pid	Process	procid_target
PID 2904 wrote to memory of 2584	2904	fix.exe	28
PID 2904 wrote to memory of 2584	2904	fix.exe	28
PID 2904 wrote to memory of 2584	2904	fix.exe	28
PID 2904 wrote to memory of 2808	2904	fix.exe	30
PID 2904 wrote to memory of 2808	2904	fix.exe	30
PID 2904 wrote to memory of 2808	2904	fix.exe	30
PID 2904 wrote to memory of 2768	2904	fix.exe	32
PID 2904 wrote to memory of 2768	2904	fix.exe	32
PID 2904 wrote to memory of 2768	2904	fix.exe	32
PID 2904 wrote to memory of 2412	2904	fix.exe	34
PID 2904 wrote to memory of 2412	2904	fix.exe	34
PID 2904 wrote to memory of 2412	2904	fix.exe	34
PID 2280 wrote to memory of 1880	2280	chrome.exe	38
PID 2280 wrote to memory of 1880	2280	chrome.exe	38
PID 2280 wrote to memory of 1880	2280	chrome.exe	38
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2776	2280	chrome.exe	39
PID 2280 wrote to memory of 2896	2280	chrome.exe	40
PID 2280 wrote to memory of 2896	2280	chrome.exe	40
PID 2280 wrote to memory of 2896	2280	chrome.exe	40
PID 2280 wrote to memory of 2580	2280	chrome.exe	41
PID 2280 wrote to memory of 2580	2280	chrome.exe	41
PID 2280 wrote to memory of 2580	2280	chrome.exe	41
PID 2280 wrote to memory of 2580	2280	chrome.exe	41
PID 2280 wrote to memory of 2580	2280	chrome.exe	41
PID 2280 wrote to memory of 2580	2280	chrome.exe	41
PID 2280 wrote to memory of 2580	2280	chrome.exe	41

C:\Users\Admin\AppData\Local\Temp\fix.exe
"C:\Users\Admin\AppData\Local\Temp\fix.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\fix.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2584
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'fix.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2768
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2412

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7feefd49758,0x7feefd49768,0x7feefd49778
  2⤵
  PID:1880
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1160 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:2
  2⤵
  PID:2776
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1436 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:8
  2⤵
  PID:2896
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1472 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:8
  2⤵
  PID:2580
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2288 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:1
  2⤵
  PID:580
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2296 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:1
  2⤵
  PID:1396
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1160 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:2
  2⤵
  PID:1952
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3196 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:1
  2⤵
  PID:1428
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3456 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:8
  2⤵
  PID:1668
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3552 --field-trial-handle=1236,i,10970596290991213600,4635549291737484061,131072 /prefetch:8
  2⤵
  PID:2664

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:2372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\17d7f694-464a-4719-8522-6842ff0ee0ed.tmp

Filesize
279KB

MD5
40fca558f0178e1b9bb0771012f09b45

SHA1
14a23db19bad3eb57e7fbca78203a6d033d88ffa

SHA256
5cc834a729dafdb7fd80776561b4c3b10ddde2090a609ff58ce7b00061fe1eca

SHA512
27e2a22a1e4bda4b55fd812850d781aa9b3ad823a6aa1a215399b0bdf337c3f7736b0e438d10524a0fc86de80bff0d58d897d13c943a8470fde7908ab9f576f0

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\000007.dbtmp

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
f506d563671f69c0685f4f6dae67e6d4

SHA1
59aef1cb6b0f109e1fa18e7dc7763094af84aa01

SHA256
ce39d0f4638e1801d64fef449581e5a44ab6fb742f25718f91ea94f4e6a238aa

SHA512
1a3ec88c2fab02adebd38180f9622eeff76bcdd1c77fa9b599ef46427842456b973bfacecada55349079c262cb863c6fd03df298214caba9d6b2255021171fc0

Download Submit
\??\PIPE\srvsvc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2584-8-0x00000000028F0000-0x00000000028F8000-memory.dmp

Filesize
32KB

Download
memory/2584-7-0x000000001B510000-0x000000001B7F2000-memory.dmp

Filesize
2.9MB

Download
memory/2584-6-0x00000000027F0000-0x0000000002870000-memory.dmp

Filesize
512KB

Download
memory/2808-14-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/2808-15-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download
memory/2904-0-0x000007FEF5353000-0x000007FEF5354000-memory.dmp

Filesize
4KB

Download
memory/2904-28-0x0000000000C50000-0x0000000000CD0000-memory.dmp

Filesize
512KB

Download
memory/2904-29-0x000007FEF5353000-0x000007FEF5354000-memory.dmp

Filesize
4KB

Download
memory/2904-30-0x0000000000B90000-0x0000000000B9C000-memory.dmp

Filesize
48KB

Download
memory/2904-31-0x0000000000C50000-0x0000000000CD0000-memory.dmp

Filesize
512KB

Download
memory/2904-1-0x0000000000F80000-0x0000000000F90000-memory.dmp

Filesize
64KB

Download