xworm | e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e

General

Target

e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe
Size

1.1MB
MD5

4a38f76b967f388a213ff4955d504ecc
SHA1

8749c398b6ae571994d0db8a86c9f13dd739c9bf
SHA256

e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e
SHA512

2da9ceb255c1f1149d0439fdf83be08dba9d292836fd4352c410778d59ea9c08e24c564a8b76af79d089e30a110ac144c1d93dac19d50d43c8036d610313a56a
SSDEEP

24576:sqDEvCTbMWu7rQYlBQcBiT6rprG8aZ0tmEbmZpA:sTvC/MTQYxsWR7aZ9eom

Score

10^/10

Malware Config

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2736-23-0x0000000000090000-0x00000000000BC000-memory.dmp	family_xworm
behavioral1/memory/2736-27-0x0000000000090000-0x00000000000BC000-memory.dmp	family_xworm
behavioral1/memory/2736-25-0x0000000000090000-0x00000000000BC000-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/2736-23-0x0000000000090000-0x00000000000BC000-memory.dmp	net_reactor
behavioral1/memory/2736-27-0x0000000000090000-0x00000000000BC000-memory.dmp	net_reactor
behavioral1/memory/2736-25-0x0000000000090000-0x00000000000BC000-memory.dmp	net_reactor

Legitimate hosting services abused for malware hosting/C2 1 TTPs 34 IoCs

Web Service

T1102

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2120 set thread context of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	RegSvcs.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32
PID 2120 wrote to memory of 2736	2120	e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe	32

C:\Users\Admin\AppData\Local\Temp\e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe
"C:\Users\Admin\AppData\Local\Temp\e000083fbb34cf231e37d9d5c86ba40c8266efe106eb1a8b7e80cf1c0cc4768e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- 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:2736

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

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Downloads

memory/2736-20-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/2736-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-23-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/2736-27-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/2736-25-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/2736-28-0x000000007480E000-0x000000007480F000-memory.dmp

Filesize
4KB

Download
memory/2736-29-0x0000000074800000-0x0000000074EEE000-memory.dmp

Filesize
6.9MB

Download
memory/2736-30-0x000000007480E000-0x000000007480F000-memory.dmp

Filesize
4KB

Download
memory/2736-31-0x0000000074800000-0x0000000074EEE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing