xtremerat | 82ab818a85445a988dc1112048c3ef1cde154d1a394eee13b0ba00bf208161ee

General

Target

cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe
Size

456KB
MD5

cf47df29e9045c561027be3b2a30fe74
SHA1

687bda6bf9dff3bdf17d59b6c999a810b73ae474
SHA256

82ab818a85445a988dc1112048c3ef1cde154d1a394eee13b0ba00bf208161ee
SHA512

9741b25b498e96f56caa46a7c7a645b59713266ba1d232227b0ce33f664f1c2bc709dcc76c21434be074e4739db80be87cdb7a03d863ee5d7feba1d7a1e71b8b
SSDEEP

3072:2YqZZPztvLI1lytnUpOnYLKSFdUieiZQwMIJN/fAw65XVS11I2VTn2d5ipflH4FM:2YqypOYTTeiQwMN95xI2eZ46r11B69

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

matthieu.no-ip.biz

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4232-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4232-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3796-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4232-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3796-9-0x0000000010000000-0x000000001004D000-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
Xtremerat family
xtremerat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1116 set thread context of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4232-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4232-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4232-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4232-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3796-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4232-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3796-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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
3204	3796	WerFault.exe	83
4664	3796	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 3 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	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82
PID 1116 wrote to memory of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82
PID 1116 wrote to memory of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82
PID 1116 wrote to memory of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82
PID 1116 wrote to memory of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82
PID 1116 wrote to memory of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82
PID 1116 wrote to memory of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82
PID 1116 wrote to memory of 4232	1116	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	82
PID 4232 wrote to memory of 3796	4232	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	83
PID 4232 wrote to memory of 3796	4232	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	83
PID 4232 wrote to memory of 3796	4232	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	83
PID 4232 wrote to memory of 3796	4232	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	83
PID 4232 wrote to memory of 2540	4232	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	84
PID 4232 wrote to memory of 2540	4232	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	84
PID 4232 wrote to memory of 2540	4232	cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Users\Admin\AppData\Local\Temp\cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\cf47df29e9045c561027be3b2a30fe74_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4232
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3796
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 480
      4⤵
      Program crash
      PID:3204
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 488
      4⤵
      Program crash
      PID:4664
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3796 -ip 3796
1⤵
PID:2588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3796 -ip 3796
1⤵
PID:2252

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

memory/3796-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3796-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4232-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4232-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4232-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4232-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4232-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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