xworm | 362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969

General

Target

362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe
Size

66KB
MD5

db69b881c533823b0a6cc3457dae6394
SHA1

4b9532efa31c638bcce20cdd2e965ad80f98d87b
SHA256

362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969
SHA512

b9fe75ac47c1aa2c0ba49d648598346a26828e7aa9f572d6aebece94d8d3654d82309af54173278be27f78d4b58db1c3d001cb50596900dee63f4fb9988fb6df
SSDEEP

1536:6t0UYc38zWpfs4FkXtUg4QbskJrptNbm6E60OilVi:6t7R38zWXF0TbsU8O2s

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%Userprofile%
install_file
MicrosoftProfile.exe
pastebin_url
https://pastebin.com/raw/yDTTG7qZ

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/664-1-0x0000000000BC0000-0x0000000000BD6000-memory.dmp	family_xworm
behavioral2/files/0x000b000000023c86-56.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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
1628	powershell.exe
2376	powershell.exe
652	powershell.exe
764	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe

Executes dropped EXE 2 IoCs

pid	Process
1724	MicrosoftProfile.exe
1796	MicrosoftProfile.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicrosoftProfile = "C:\\Users\\Admin\\MicrosoftProfile.exe"	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
17	pastebin.com
18	pastebin.com

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
11	ip-api.com

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5000	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1628	powershell.exe
1628	powershell.exe
2376	powershell.exe
2376	powershell.exe
652	powershell.exe
652	powershell.exe
764	powershell.exe
764	powershell.exe
664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe
Token: SeDebugPrivilege	1628	powershell.exe
Token: SeDebugPrivilege	2376	powershell.exe
Token: SeDebugPrivilege	652	powershell.exe
Token: SeDebugPrivilege	764	powershell.exe
Token: SeDebugPrivilege	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe
Token: SeDebugPrivilege	1724	MicrosoftProfile.exe
Token: SeDebugPrivilege	1796	MicrosoftProfile.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 664 wrote to memory of 1628	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	87
PID 664 wrote to memory of 1628	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	87
PID 664 wrote to memory of 2376	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	89
PID 664 wrote to memory of 2376	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	89
PID 664 wrote to memory of 652	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	91
PID 664 wrote to memory of 652	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	91
PID 664 wrote to memory of 764	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	93
PID 664 wrote to memory of 764	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	93
PID 664 wrote to memory of 5000	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	95
PID 664 wrote to memory of 5000	664	362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe	95

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe
"C:\Users\Admin\AppData\Local\Temp\362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:664
- 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\362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1628
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2376
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\MicrosoftProfile.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:652
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'MicrosoftProfile.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:764
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "MicrosoftProfile" /tr "C:\Users\Admin\MicrosoftProfile.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5000

C:\Users\Admin\MicrosoftProfile.exe
C:\Users\Admin\MicrosoftProfile.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1724

C:\Users\Admin\MicrosoftProfile.exe
C:\Users\Admin\MicrosoftProfile.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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
2117cf9865e42aacdfc8925e05fe4031

SHA1
f89be0d1409b864d85da2479dbcf4382b9a8e888

SHA256
97ed8e4e2f74329c27b63cc9b72b4af1cdc51c4dc014725b80b51da93b91192d

SHA512
83e12e1658ae4bf6b89edaa04e3e81492b9d25990745ab429ebf861915826512213ac9accc1323a5f3d71a821c07ff9010aa8772eb6b0bf6a93649b3ca112166

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g53ub5xh.nyt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\MicrosoftProfile.exe

Filesize
66KB

MD5
db69b881c533823b0a6cc3457dae6394

SHA1
4b9532efa31c638bcce20cdd2e965ad80f98d87b

SHA256
362d1d060b612cb88ec9a1835f9651b5eff1ef1179711892385c2ab44d826969

SHA512
b9fe75ac47c1aa2c0ba49d648598346a26828e7aa9f572d6aebece94d8d3654d82309af54173278be27f78d4b58db1c3d001cb50596900dee63f4fb9988fb6df

Download Submit
memory/664-1-0x0000000000BC0000-0x0000000000BD6000-memory.dmp

Filesize
88KB

Download
memory/664-2-0x00007FFBAD8E0000-0x00007FFBAE3A1000-memory.dmp

Filesize
10.8MB

Download
memory/664-0-0x00007FFBAD8E3000-0x00007FFBAD8E5000-memory.dmp

Filesize
8KB

Download
memory/664-55-0x00007FFBAD8E0000-0x00007FFBAE3A1000-memory.dmp

Filesize
10.8MB

Download
memory/664-20-0x00007FFBAD8E3000-0x00007FFBAD8E5000-memory.dmp

Filesize
8KB

Download
memory/1628-13-0x000001CFA2940000-0x000001CFA2962000-memory.dmp

Filesize
136KB

Download
memory/1628-18-0x00007FFBAD8E0000-0x00007FFBAE3A1000-memory.dmp

Filesize
10.8MB

Download
memory/1628-15-0x00007FFBAD8E0000-0x00007FFBAE3A1000-memory.dmp

Filesize
10.8MB

Download
memory/1628-14-0x00007FFBAD8E0000-0x00007FFBAE3A1000-memory.dmp

Filesize
10.8MB

Download
memory/1628-3-0x00007FFBAD8E0000-0x00007FFBAE3A1000-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