xworm | 725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe

General

Target

725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe
Size

75KB
MD5

cf219a189dae4a022f26dd58cd5367e6
SHA1

76c2e7b756e894afc4e5fd7267fce398d58c518f
SHA256

725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe
SHA512

21dc7cdd5ea07be708a5c696708207a1760851d2fbb608969254a8f3e806bbb87b6b27a4d5f4cecf1b5d90f6fc81759fd9f6222ddafdb955d41b0333ea085f1f
SSDEEP

1536:jH5rQdEBziKJ86VKzwmd+bp6FabOYzTNddV6XItOyjyHTy3TWL4xdvGC:jH3F86VwwwAxbO2hdPtOyjUUTWsvGC

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

lijaligibidu-35558.portmap.host:35558

Attributes

Install_directory
%AppData%
install_file
Windows Security.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4400-1-0x0000000000420000-0x0000000000438000-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

pid	Process
4876	powershell.exe
2476	powershell.exe
2660	powershell.exe
3492	powershell.exe

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Security.lnk	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Security.lnk	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.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
13	ip-api.com

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
884	timeout.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4876	powershell.exe
4876	powershell.exe
2476	powershell.exe
2476	powershell.exe
2660	powershell.exe
2660	powershell.exe
3492	powershell.exe
3492	powershell.exe
4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe
Token: SeDebugPrivilege	4876	powershell.exe
Token: SeDebugPrivilege	2476	powershell.exe
Token: SeDebugPrivilege	2660	powershell.exe
Token: SeDebugPrivilege	3492	powershell.exe
Token: SeDebugPrivilege	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 4876	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	90
PID 4400 wrote to memory of 4876	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	90
PID 4400 wrote to memory of 2476	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	93
PID 4400 wrote to memory of 2476	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	93
PID 4400 wrote to memory of 2660	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	95
PID 4400 wrote to memory of 2660	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	95
PID 4400 wrote to memory of 3492	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	97
PID 4400 wrote to memory of 3492	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	97
PID 4400 wrote to memory of 5064	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	102
PID 4400 wrote to memory of 5064	4400	725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe	102
PID 5064 wrote to memory of 884	5064	cmd.exe	104
PID 5064 wrote to memory of 884	5064	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe
"C:\Users\Admin\AppData\Local\Temp\725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4400
- 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\725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4876
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '725c0bcdb953e39e96a0192d2712b261541647259e494c583d19697a10d2ffbe.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2476
- 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\Windows Security.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2660
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Security.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3492
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCAF1.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5064
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
cae60f0ddddac635da71bba775a2c5b4

SHA1
386f1a036af61345a7d303d45f5230e2df817477

SHA256
b2dd636b7b0d3bfe44cef5e1175828b1fa7bd84d5563f54342944156ba996c16

SHA512
28ed8a8bc132ef56971cfd7b517b17cdb74a7f8c247ef6bff232996210075e06aa58a415825a1e038cfb547ad3dc6882bf1ca1b68c5b360ef0512a1440850253

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

Filesize
944B

MD5
28960b97082c0672f10c400a39d01a30

SHA1
9ecc5627915ef1ca2ce78019f575574fd0bd4e25

SHA256
c18f62539bb72644b8aa389a623770348e0fa19f1ef6ae6192e7d59975fcafa8

SHA512
74529db64b20232c33b69c40b0838dd4bcf9f5f20ab52c2734f54bcbdc60dc64c840ef022545e267008686ae1d524aa82ee44f6e26a07df9e0e363b0e7eb1985

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jlkq5a2m.5qb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCAF1.tmp.bat

Filesize
216B

MD5
b88d5b0ff2c728e4f6f8fb2d546c8b3e

SHA1
56c94ecaac2c5209d4ca20a3f04a9694982f0d31

SHA256
3822476830cf93fbdd4c6f205aa5709e96e6e2a568d233c8d2bdab05e93b1c6a

SHA512
9397a4281c68b0833d130782154b71d1b4f06317a08da540dd9485e7300ca2585709343d3d617395e9b90f95bacbc7386bb83f27097acdbcb1d4fec9c7a67003

Download Submit
memory/4400-1-0x0000000000420000-0x0000000000438000-memory.dmp

Filesize
96KB

Download
memory/4400-2-0x00007FFDAF2B0000-0x00007FFDAFD71000-memory.dmp

Filesize
10.8MB

Download
memory/4400-66-0x00007FFDAF2B0000-0x00007FFDAFD71000-memory.dmp

Filesize
10.8MB

Download
memory/4400-0-0x00007FFDAF2B3000-0x00007FFDAF2B5000-memory.dmp

Filesize
8KB

Download
memory/4400-58-0x00007FFDAF2B0000-0x00007FFDAFD71000-memory.dmp

Filesize
10.8MB

Download
memory/4400-57-0x00007FFDAF2B3000-0x00007FFDAF2B5000-memory.dmp

Filesize
8KB

Download
memory/4876-9-0x000001807E4A0000-0x000001807E4C2000-memory.dmp

Filesize
136KB

Download
memory/4876-18-0x00007FFDAF2B0000-0x00007FFDAFD71000-memory.dmp

Filesize
10.8MB

Download
memory/4876-15-0x00007FFDAF2B0000-0x00007FFDAFD71000-memory.dmp

Filesize
10.8MB

Download
memory/4876-14-0x00007FFDAF2B0000-0x00007FFDAFD71000-memory.dmp

Filesize
10.8MB

Download
memory/4876-3-0x00007FFDAF2B0000-0x00007FFDAFD71000-memory.dmp

Filesize
10.8MB

Download

Analysis

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