xworm | 53fa4aaf3bd78521f9d402d0c793078353e6ff8f9d0ff7efcd8c686c79c69560

General

Target

nigger.exe
Size

58KB
MD5

abb96dc265c42a9e9357b69cd911ffce
SHA1

96a3619977f5b58a1cede6b960adca942e82d4e6
SHA256

53fa4aaf3bd78521f9d402d0c793078353e6ff8f9d0ff7efcd8c686c79c69560
SHA512

c56af566bb3ddf2731daa2a74936f0500b32ee36bd8184ee7c17924c9ed730b64bd4552a91fc55b870754e49196a30e6d414ba77bee960b18d4c9136e51087fb
SSDEEP

1536:Bvf7dvzwTr1JVEUrq1xLAhhaL5b7JkbutjkfZNJN99Opv8gJaed:Bvf8CUrqMhILjkbu4Nn99OpEgTd

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

dc-coleman.gl.at.ply.gg:42550

Attributes

Install_directory
%AppData%
install_file
runbroker300.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2920-1-0x0000000000210000-0x0000000000224000-memory.dmp	family_xworm
behavioral2/files/0x000b000000023b6e-7.dat	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-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	nigger.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\runbroker300.lnk	nigger.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\runbroker300.lnk	nigger.exe

Executes dropped EXE 1 IoCs

pid	Process
4944	runbroker300.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-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\runbroker300 = "C:\\Users\\Admin\\AppData\\Roaming\\runbroker300.exe"	nigger.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
3684	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2600	timeout.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2920	nigger.exe
Token: SeDebugPrivilege	2920	nigger.exe
Token: SeDebugPrivilege	4944	runbroker300.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 3684	2920	nigger.exe	90
PID 2920 wrote to memory of 3684	2920	nigger.exe	90
PID 2920 wrote to memory of 3060	2920	nigger.exe	103
PID 2920 wrote to memory of 3060	2920	nigger.exe	103
PID 2920 wrote to memory of 2084	2920	nigger.exe	105
PID 2920 wrote to memory of 2084	2920	nigger.exe	105
PID 2084 wrote to memory of 2600	2084	cmd.exe	107
PID 2084 wrote to memory of 2600	2084	cmd.exe	107

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\nigger.exe
"C:\Users\Admin\AppData\Local\Temp\nigger.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "runbroker300" /tr "C:\Users\Admin\AppData\Roaming\runbroker300.exe"
  2⤵
  - Creates scheduled task(s)
  PID:3684
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "runbroker300"
  2⤵
  PID:3060
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3B4F.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2084
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2600

C:\Users\Admin\AppData\Roaming\runbroker300.exe
C:\Users\Admin\AppData\Roaming\runbroker300.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3B4F.tmp.bat

Filesize
158B

MD5
defb2d8f8015a35ed866e728df7f50ec

SHA1
2e591864570cfe6377fbf8668240c2cddcba5fcb

SHA256
f3313b62384dfd43686d1ce0482477e41f4ec1994212bc0cc1d56a3178f29533

SHA512
e2e70041a4cc9be5a5f6ab373fbb354147b5dc82c3d6604a42bc787122007d2547fac9b2a95d83f28b5d9657305623001483147e8f01de676fb725e9edee48a6

Download Submit
C:\Users\Admin\AppData\Roaming\runbroker300.exe

Filesize
58KB

MD5
abb96dc265c42a9e9357b69cd911ffce

SHA1
96a3619977f5b58a1cede6b960adca942e82d4e6

SHA256
53fa4aaf3bd78521f9d402d0c793078353e6ff8f9d0ff7efcd8c686c79c69560

SHA512
c56af566bb3ddf2731daa2a74936f0500b32ee36bd8184ee7c17924c9ed730b64bd4552a91fc55b870754e49196a30e6d414ba77bee960b18d4c9136e51087fb

Download Submit
memory/2920-0-0x00007FFC22A73000-0x00007FFC22A75000-memory.dmp

Filesize
8KB

Download
memory/2920-1-0x0000000000210000-0x0000000000224000-memory.dmp

Filesize
80KB

Download
memory/2920-6-0x00007FFC22A70000-0x00007FFC23531000-memory.dmp

Filesize
10.8MB

Download
memory/2920-12-0x00007FFC22A70000-0x00007FFC23531000-memory.dmp

Filesize
10.8MB

Download
memory/2920-19-0x00007FFC22A70000-0x00007FFC23531000-memory.dmp

Filesize
10.8MB

Download
memory/4944-9-0x00007FFC22A70000-0x00007FFC23531000-memory.dmp

Filesize
10.8MB

Download
memory/4944-11-0x00007FFC22A70000-0x00007FFC23531000-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