xtremerat | 9db0163883a555a809da34264e9b8e70f5d9a974d31e237af1874841c6e929f3

General

Target

955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe
Size

90KB
MD5

955be94e8ef438b9bb86eed8faefa0c5
SHA1

7157fc0e25bd18a0c652036fb3cdf6409a84467b
SHA256

9db0163883a555a809da34264e9b8e70f5d9a974d31e237af1874841c6e929f3
SHA512

af609bb1fe4fa3b9db0e7ab06eb4bc5a6b5c0e659766bb5f80de02e399971370541afd5030b3d97df4e9517109ac4721cf084e40f6b08ad97a0ec931ac466ffb
SSDEEP

1536:2rhU7XNDz5hwv4a7c6brQ+jeaKkZveh4o3NkmYVXyX2+cCCNZpl:2y7dX5hwwEcOQwsEWW06P7N9

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

hkr-1952.no-ip.biz

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2460-7-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/2460-8-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/3504-10-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/2460-11-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/3504-12-0x0000000010000000-0x000000001004B000-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
Xtremerat family
xtremerat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4488 set thread context of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2460-3-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2460-6-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2460-7-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2460-8-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/3504-10-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2460-11-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/3504-12-0x0000000010000000-0x000000001004B000-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
1052	3504	WerFault.exe	86
4012	3504	WerFault.exe	86

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	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85
PID 4488 wrote to memory of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85
PID 4488 wrote to memory of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85
PID 4488 wrote to memory of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85
PID 4488 wrote to memory of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85
PID 4488 wrote to memory of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85
PID 4488 wrote to memory of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85
PID 4488 wrote to memory of 2460	4488	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	85
PID 2460 wrote to memory of 3504	2460	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	86
PID 2460 wrote to memory of 3504	2460	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	86
PID 2460 wrote to memory of 3504	2460	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	86
PID 2460 wrote to memory of 3504	2460	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	86
PID 2460 wrote to memory of 4032	2460	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	87
PID 2460 wrote to memory of 4032	2460	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	87
PID 2460 wrote to memory of 4032	2460	955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Users\Admin\AppData\Local\Temp\955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\955be94e8ef438b9bb86eed8faefa0c5_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2460
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3504
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 480
      4⤵
      Program crash
      PID:1052
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 500
      4⤵
      Program crash
      PID:4012
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3504 -ip 3504
1⤵
PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3504 -ip 3504
1⤵
PID:1352

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/2460-3-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2460-6-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2460-7-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2460-8-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2460-11-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3504-10-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3504-12-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/4488-0-0x0000000074812000-0x0000000074813000-memory.dmp

Filesize
4KB

Download
memory/4488-1-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download
memory/4488-2-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download
memory/4488-9-0x0000000074810000-0x0000000074DC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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