xworm | fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944e

General

Target

fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe
Size

1.1MB
MD5

d9dbf8790fda74b66d00d6ab40fcc370
SHA1

671d46b5408dc92b1c0502b1a758b74151408ae9
SHA256

fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944e
SHA512

0afbfe4b928a2940d641f18f59f5333b7bd1dda0f61a49d3340cc5e84795ea48feeb3ef934f02dbd24e05b557972e8f3ff5fc7dd42ff020a2a74f44956b8a4a7
SSDEEP

24576:sqDEvCTbMWu7rQYlBQcBiT6rprG8aZ0tmEbmZp:sTvC/MTQYxsWR7aZ9eo

Score

10^/10

Malware Config

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1316-23-0x0000000000090000-0x00000000000BC000-memory.dmp	family_xworm
behavioral1/memory/1316-25-0x0000000000090000-0x00000000000BC000-memory.dmp	family_xworm
behavioral1/memory/1316-27-0x0000000000090000-0x00000000000BC000-memory.dmp	family_xworm

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

.NET Reactor proctector 3 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral1/memory/1316-23-0x0000000000090000-0x00000000000BC000-memory.dmp	net_reactor
behavioral1/memory/1316-25-0x0000000000090000-0x00000000000BC000-memory.dmp	net_reactor
behavioral1/memory/1316-27-0x0000000000090000-0x00000000000BC000-memory.dmp	net_reactor

Legitimate hosting services abused for malware hosting/C2 1 TTPs 33 IoCs

Web Service

T1102

flow	ioc
17	pastebin.com
18	pastebin.com
44	pastebin.com
21	pastebin.com
49	pastebin.com
54	pastebin.com
4	drive.google.com
16	pastebin.com
32	pastebin.com
33	pastebin.com
38	pastebin.com
41	pastebin.com
45	pastebin.com
5	drive.google.com
14	pastebin.com
36	pastebin.com
39	pastebin.com
43	pastebin.com
46	pastebin.com
48	pastebin.com
52	pastebin.com
31	pastebin.com
35	pastebin.com
40	pastebin.com
30	pastebin.com
34	pastebin.com
42	pastebin.com
51	pastebin.com
47	pastebin.com
50	pastebin.com
53	pastebin.com
15	pastebin.com
37	pastebin.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1156 set thread context of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32

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	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1316	RegSvcs.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32
PID 1156 wrote to memory of 1316	1156	fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe	32

C:\Users\Admin\AppData\Local\Temp\fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe
"C:\Users\Admin\AppData\Local\Temp\fa526b6b6f9cfd9ce9772bb128b924d829b9193e6c1a4f4cd65284c563b1944eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1316-20-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/1316-23-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/1316-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1316-25-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/1316-27-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/1316-28-0x00000000744AE000-0x00000000744AF000-memory.dmp

Filesize
4KB

Download
memory/1316-29-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/1316-30-0x00000000744AE000-0x00000000744AF000-memory.dmp

Filesize
4KB

Download
memory/1316-31-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing