xtremerat | e4dc6d8626f596c20855afe0bd66b7c64c07ffe774ecf667f4f4753dcd76c830

General

Target

39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe
Size

228KB
MD5

39f745ab873caf4c196a1bbc96ac973f
SHA1

7616413b64c1ef531ca512e9e9d597735911b391
SHA256

e4dc6d8626f596c20855afe0bd66b7c64c07ffe774ecf667f4f4753dcd76c830
SHA512

4edbbecd8d283b4b0810ce977f239da2ae03097be2455c8acd420d21ed43447895368fad81a6c558b709b2499d29369b3e2284e74e4c15ff3cbe9904df1e1c1b
SSDEEP

3072:++0KfLf6560tW+0H9w5hejL/iIaw0bbSudCo5//gyx8XfpmKhSP8TjJEjYC6wta+:7fLS5c9hjpynooxgyx8XxdEY1WFWX5Hi

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

algamde.no-ip.biz

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4272-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3128-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3128-11-0x0000000010000000-0x000000001004D000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3220 set thread context of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4272-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4272-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4272-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3128-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3128-11-0x0000000010000000-0x000000001004D000-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
4956	3128	WerFault.exe	86
968	3128	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	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3220 wrote to memory of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84
PID 3220 wrote to memory of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84
PID 3220 wrote to memory of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84
PID 3220 wrote to memory of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84
PID 3220 wrote to memory of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84
PID 3220 wrote to memory of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84
PID 3220 wrote to memory of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84
PID 3220 wrote to memory of 4272	3220	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	84
PID 4272 wrote to memory of 3128	4272	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	86
PID 4272 wrote to memory of 3128	4272	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	86
PID 4272 wrote to memory of 3128	4272	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	86
PID 4272 wrote to memory of 3128	4272	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	86
PID 4272 wrote to memory of 376	4272	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	88
PID 4272 wrote to memory of 376	4272	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	88
PID 4272 wrote to memory of 376	4272	39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3220
- C:\Users\Admin\AppData\Local\Temp\39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\39f745ab873caf4c196a1bbc96ac973f_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4272
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3128
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3128 -s 480
      4⤵
      Program crash
      PID:4956
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3128 -s 504
      4⤵
      Program crash
      PID:968
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3128 -ip 3128
1⤵
PID:4160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 3128 -ip 3128
1⤵
PID:1968

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/3128-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3128-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3220-0-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/3220-1-0x0000000000401000-0x0000000000473000-memory.dmp

Filesize
456KB

Download
memory/3220-8-0x0000000000400000-0x0000000000495000-memory.dmp

Filesize
596KB

Download
memory/4272-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4272-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4272-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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