xworm | 87d91a5a226ba8b4fc71b6056c6bd5517e658a063ed592ad7b8d0c2023bea832

General

Target

sdafsdf.exe
Size

62KB
MD5

5797a6b20156f0a2980d1065da29c0bf
SHA1

0ef27e2a5fdf026647861d7a621dfa3724b11a7b
SHA256

87d91a5a226ba8b4fc71b6056c6bd5517e658a063ed592ad7b8d0c2023bea832
SHA512

43860b663a748e01655ea35aa490148ce2b2e2ed68f65afa6ce5dd35e0f71f9196d6208efd854b70da2c0430212392340eb5cfd12ef60ca411c92fa5998af9a0
SSDEEP

1536:kZpWzfo/gqlER4c+HEbsEgrIsHWN6OOJAODK:1zA/gqKR4cRbsZHEOJAkK

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

s7vety-47274.portmap.host:47274

Attributes

Install_directory
%AppData%
install_file
End.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4472-0-0x0000000000370000-0x0000000000386000-memory.dmp	family_xworm

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	sdafsdf.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\End.lnk	sdafsdf.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\End.lnk	sdafsdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\End = "C:\\Users\\Admin\\AppData\\Roaming\\End.exe"	sdafsdf.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
29	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2552	powershell.exe
2552	powershell.exe
2400	powershell.exe
2400	powershell.exe
4080	powershell.exe
4080	powershell.exe
5016	powershell.exe
5016	powershell.exe
4472	sdafsdf.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4472	sdafsdf.exe
Token: SeDebugPrivilege	2552	powershell.exe
Token: SeDebugPrivilege	2400	powershell.exe
Token: SeDebugPrivilege	4080	powershell.exe
Token: SeDebugPrivilege	5016	powershell.exe
Token: SeDebugPrivilege	4472	sdafsdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4472	sdafsdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 2552	4472	sdafsdf.exe	90
PID 4472 wrote to memory of 2552	4472	sdafsdf.exe	90
PID 4472 wrote to memory of 2400	4472	sdafsdf.exe	94
PID 4472 wrote to memory of 2400	4472	sdafsdf.exe	94
PID 4472 wrote to memory of 4080	4472	sdafsdf.exe	96
PID 4472 wrote to memory of 4080	4472	sdafsdf.exe	96
PID 4472 wrote to memory of 5016	4472	sdafsdf.exe	98
PID 4472 wrote to memory of 5016	4472	sdafsdf.exe	98

C:\Users\Admin\AppData\Local\Temp\sdafsdf.exe
"C:\Users\Admin\AppData\Local\Temp\sdafsdf.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4472
- 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\sdafsdf.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2552
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'sdafsdf.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2400
- 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\End.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4080
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'End.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
05b1e52b445582c060c505f3d89bc540

SHA1
acb74be5e672dc409bd265a30e7ae2df96bfa975

SHA256
50184106d36bc22f8856534b64698338a0d7a4813d1b5802f0ae09ec9d995c7a

SHA512
1040f2ebea0cfc242d64a3ef36a8aa212bd7b2d45ecf518599f89cb2799568ba8d2361f900b61d753606bf5035d7340b47de13cf1de21ad29cceb76e0f194bf6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
4e225c2f810e836ccb5583d40a69673f

SHA1
872d5b72a08fcbb7bdb10678f0bee5f8043dd9f4

SHA256
4a060acf07c5771fe47b7c4023fc00b2e3ff0d0d25ab9a179dc9589e0a22b581

SHA512
0a71cf4d3bfa4f9eea0db46014ceb861d73745fbe857d8be91a686d2468bed18f4e7a58452938fda4500fde484d1b3b8aa3c601dcd82a6a5a2bff904843bdca9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gdnb2xqk.jri.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2400-20-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/2400-32-0x0000026BBF4C0000-0x0000026BBF4D0000-memory.dmp

Filesize
64KB

Download
memory/2400-34-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/2400-21-0x0000026BBF4C0000-0x0000026BBF4D0000-memory.dmp

Filesize
64KB

Download
memory/2552-18-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/2552-3-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/2552-4-0x000001C41C030000-0x000001C41C040000-memory.dmp

Filesize
64KB

Download
memory/2552-5-0x000001C41C030000-0x000001C41C040000-memory.dmp

Filesize
64KB

Download
memory/2552-6-0x000001C41C070000-0x000001C41C092000-memory.dmp

Filesize
136KB

Download
memory/4080-49-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/4080-36-0x0000019D784D0000-0x0000019D784E0000-memory.dmp

Filesize
64KB

Download
memory/4080-35-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/4080-42-0x0000019D784D0000-0x0000019D784E0000-memory.dmp

Filesize
64KB

Download
memory/4472-0-0x0000000000370000-0x0000000000386000-memory.dmp

Filesize
88KB

Download
memory/4472-2-0x000000001B040000-0x000000001B050000-memory.dmp

Filesize
64KB

Download
memory/4472-69-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/4472-1-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/5016-50-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download
memory/5016-51-0x0000024A17A60000-0x0000024A17A70000-memory.dmp

Filesize
64KB

Download
memory/5016-52-0x0000024A17A60000-0x0000024A17A70000-memory.dmp

Filesize
64KB

Download
memory/5016-64-0x00007FF8A1770000-0x00007FF8A2231000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads