xworm | 810e347b05bec3d24178a9f5330d73d85b67f28c6e5e7d82c254743619dd0d0c

General

Target

Transferencia - BBVA 20250310.pdf(45KB).com.exe
Size

461KB
MD5

344c5f114ab236568f1c76668510c0ea
SHA1

135a155a0676b648e1c8ad4e2a9853dfddfb83c1
SHA256

810e347b05bec3d24178a9f5330d73d85b67f28c6e5e7d82c254743619dd0d0c
SHA512

7bc72f6189a0020c3f40a8b79dc440065c80c4efbd3fc96ac53f8b76eb431e33d427d1e543e7af22bb1a6baec24750b0d72e6677788c033e7acd23b1b0a40c20
SSDEEP

6144:ZjybI1JDNqbPuSsq2Bq0u4cQfPZqzfgkPmLiJ0vC52h8Vunr0cTjGz0Am1NKYg9:YfhT0u4x/kuLV6Ah8ww6j9VW

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

C2

esetnode32-antiviru.ydns.eu:59012

rency.ydns.eu:59012

wqo9.firewall-gateway.de:59012

Attributes

Install_directory
%AppData%
install_file
Window Session Manager.exe

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2256-19-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm
behavioral1/memory/2256-17-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm
behavioral1/memory/2256-15-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm
behavioral1/memory/2256-11-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm
behavioral1/memory/2256-9-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Session Manager.lnk	Transferencia - BBVA 20250310.pdf(45KB).com.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Window Session Manager.lnk	Transferencia - BBVA 20250310.pdf(45KB).com.exe

Loads dropped DLL 1 IoCs

pid	Process
2256	Transferencia - BBVA 20250310.pdf(45KB).com.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2276 set thread context of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32

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

System Information Discovery
T1082

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	Transferencia - BBVA 20250310.pdf(45KB).com.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Transferencia - BBVA 20250310.pdf(45KB).com.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe
2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe
Token: SeDebugPrivilege	2256	Transferencia - BBVA 20250310.pdf(45KB).com.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 1692	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	31
PID 2276 wrote to memory of 1692	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	31
PID 2276 wrote to memory of 1692	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	31
PID 2276 wrote to memory of 1692	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	31
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32
PID 2276 wrote to memory of 2256	2276	Transferencia - BBVA 20250310.pdf(45KB).com.exe	32

C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe
"C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe
  "C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"
  2⤵
  PID:1692
- C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe
  "C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"
  2⤵
  - Drops startup file
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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

\Users\Admin\AppData\Roaming\Window Session Manager.exe

Filesize
461KB

MD5
344c5f114ab236568f1c76668510c0ea

SHA1
135a155a0676b648e1c8ad4e2a9853dfddfb83c1

SHA256
810e347b05bec3d24178a9f5330d73d85b67f28c6e5e7d82c254743619dd0d0c

SHA512
7bc72f6189a0020c3f40a8b79dc440065c80c4efbd3fc96ac53f8b76eb431e33d427d1e543e7af22bb1a6baec24750b0d72e6677788c033e7acd23b1b0a40c20

Download Submit
memory/2256-8-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2256-15-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2256-29-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-28-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-27-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2256-19-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2256-21-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2256-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2256-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2256-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2276-6-0x0000000004B70000-0x0000000004BC8000-memory.dmp

Filesize
352KB

Download
memory/2276-2-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2276-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/2276-20-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2276-1-0x00000000002F0000-0x000000000036A000-memory.dmp

Filesize
488KB

Download
memory/2276-5-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2276-4-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/2276-3-0x0000000000580000-0x0000000000590000-memory.dmp

Filesize
64KB

Download

Analysis

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