xtremerat | c3e1eb83a02677a2085d64b6449be29d6ee375aa012a3a7641a29675eabd92d3

General

Target

a38b5f58e66770b8e4f0fe394584890f.exe
Size

109KB
MD5

a38b5f58e66770b8e4f0fe394584890f
SHA1

934bd3706b78f98ec6e666d32ead74da12e77a4a
SHA256

c3e1eb83a02677a2085d64b6449be29d6ee375aa012a3a7641a29675eabd92d3
SHA512

c27f438e118faa2a7a828414c4d79fae097b585f442599a9fdee860abda0e79803679bc930a0f3bffc6f962e09d3a2704edba9dd4a41976a3de345f15f590dd8
SSDEEP

3072:dMY2L2FmgTOIzzuLD/v4pFKAoF4wRDEbFUHId:dMdumgTBz2v4mxyCDEpUod

Score

10^/10

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2132-9-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/2132-10-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/2408-11-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/2132-12-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/2408-13-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2132-4-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2132-7-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2132-9-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2132-10-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2408-11-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2132-12-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2408-13-0x0000000010000000-0x000000001004B000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 408 set thread context of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4468	2408	WerFault.exe	89
4852	2408	WerFault.exe	89

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
408	a38b5f58e66770b8e4f0fe394584890f.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 408 wrote to memory of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88
PID 408 wrote to memory of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88
PID 408 wrote to memory of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88
PID 408 wrote to memory of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88
PID 408 wrote to memory of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88
PID 408 wrote to memory of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88
PID 408 wrote to memory of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88
PID 408 wrote to memory of 2132	408	a38b5f58e66770b8e4f0fe394584890f.exe	88
PID 2132 wrote to memory of 2408	2132	a38b5f58e66770b8e4f0fe394584890f.exe	89
PID 2132 wrote to memory of 2408	2132	a38b5f58e66770b8e4f0fe394584890f.exe	89
PID 2132 wrote to memory of 2408	2132	a38b5f58e66770b8e4f0fe394584890f.exe	89
PID 2132 wrote to memory of 2408	2132	a38b5f58e66770b8e4f0fe394584890f.exe	89
PID 2132 wrote to memory of 1660	2132	a38b5f58e66770b8e4f0fe394584890f.exe	92
PID 2132 wrote to memory of 1660	2132	a38b5f58e66770b8e4f0fe394584890f.exe	92
PID 2132 wrote to memory of 1660	2132	a38b5f58e66770b8e4f0fe394584890f.exe	92

C:\Users\Admin\AppData\Local\Temp\a38b5f58e66770b8e4f0fe394584890f.exe
"C:\Users\Admin\AppData\Local\Temp\a38b5f58e66770b8e4f0fe394584890f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:408
- C:\Users\Admin\AppData\Local\Temp\a38b5f58e66770b8e4f0fe394584890f.exe
  "C:\Users\Admin\AppData\Local\Temp\a38b5f58e66770b8e4f0fe394584890f.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:2408
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 484
      4⤵
      Program crash
      PID:4468
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 492
      4⤵
      Program crash
      PID:4852
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2408 -ip 2408
1⤵
PID:2788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2408 -ip 2408
1⤵
PID:4408

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/408-0-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/408-1-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download
memory/408-6-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/408-8-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download
memory/2132-4-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2132-7-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2132-9-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2132-10-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2132-12-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2408-11-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2408-13-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download

Analysis

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