xworm | 7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25

General

Target

7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe
Size

6.3MB
MD5

4149a40b2d855ce0ab30df3750d3644c
SHA1

75a8cbfffc5721509cff1aec9d7ec129c4e59d0b
SHA256

7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25
SHA512

be86514ebb0452e461215fb4b5d99772697406943d7f8787e5f007e0dc396c8dfc19737a9c28b084a7d0c1612ee587608ff8ccde3341ce5a169e2b358c5d5f13
SSDEEP

98304:lXTFjm3UAtTlMmsoWXCo0B4nDk1vmp28nnnYFpyy3xjtVqox:lXTFjm3TtTlMPoW4B95mpsdxGox

Score

10^/10

xworm discovery persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

87.120.116.179:1300

Mutex

C33DN8qMtx58OdAb

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/3008-9-0x00000000002C0000-0x00000000002D0000-memory.dmp	family_xworm
behavioral1/memory/3008-14-0x00000000002C0000-0x00000000002D0000-memory.dmp	family_xworm
behavioral1/memory/3008-12-0x00000000002C0000-0x00000000002D0000-memory.dmp	family_xworm

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

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\UnuKick = "C:\\Users\\Admin\\Videos\\Kick\\VideoUnu.exe"	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 3008	2100	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3008	csc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	csc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3008	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 3008	2100	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe	30
PID 2100 wrote to memory of 3008	2100	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe	30
PID 2100 wrote to memory of 3008	2100	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe	30
PID 2100 wrote to memory of 3008	2100	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe	30
PID 2100 wrote to memory of 3008	2100	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe	30
PID 2100 wrote to memory of 3008	2100	7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe	30

C:\Users\Admin\AppData\Local\Temp\7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe
"C:\Users\Admin\AppData\Local\Temp\7c13325d6a8d39c109967a36405b46fe3161eca9e7b9abb3b79e877997ddfd25.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3008

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2100-10-0x0000000000400000-0x0000000000A8B000-memory.dmp

Filesize
6.5MB

Download
memory/2100-0-0x0000000000400000-0x0000000000A8B000-memory.dmp

Filesize
6.5MB

Download
memory/2100-2-0x0000000000400000-0x0000000000A8B000-memory.dmp

Filesize
6.5MB

Download
memory/2100-5-0x0000000000400000-0x0000000000A8B000-memory.dmp

Filesize
6.5MB

Download
memory/2100-6-0x0000000000400000-0x0000000000A8B000-memory.dmp

Filesize
6.5MB

Download
memory/2100-4-0x0000000000400000-0x0000000000A8B000-memory.dmp

Filesize
6.5MB

Download
memory/2100-17-0x0000000000573000-0x000000000058C000-memory.dmp

Filesize
100KB

Download
memory/2100-15-0x0000000000400000-0x0000000000A8B000-memory.dmp

Filesize
6.5MB

Download
memory/2100-1-0x0000000000573000-0x000000000058C000-memory.dmp

Filesize
100KB

Download
memory/3008-7-0x00000000002C0000-0x00000000002D0000-memory.dmp

Filesize
64KB

Download
memory/3008-14-0x00000000002C0000-0x00000000002D0000-memory.dmp

Filesize
64KB

Download
memory/3008-9-0x00000000002C0000-0x00000000002D0000-memory.dmp

Filesize
64KB

Download
memory/3008-12-0x00000000002C0000-0x00000000002D0000-memory.dmp

Filesize
64KB

Download
memory/3008-16-0x00000000741BE000-0x00000000741BF000-memory.dmp

Filesize
4KB

Download
memory/3008-8-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/3008-18-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-19-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads