xtremerat | 2eebb01735dc5f1678c9f4a0ac9f16b1ce458a3664cb55121ac6999ab365446f

General

Target

b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe
Size

176KB
MD5

b62b5bd3e4c242f1bb9c43bf847b3f53
SHA1

479ffc975d8cd98d393379de3e216b8426e61e62
SHA256

2eebb01735dc5f1678c9f4a0ac9f16b1ce458a3664cb55121ac6999ab365446f
SHA512

f7968db1abc649d4d54a1183fdc70a96015536d7ed022eb8d323d3b35b26b8052b453ded76e40f385f4a7631629dcf337b861a681eacca46ae333057e635fe1f
SSDEEP

3072:ENn2WMWIraMXXLS8RdRzn18jWHBoCyNlxdSFUCEZl/X1pbclN6PQm1niRO5Wv:EslW6H+8RdRzn2jWHnyNnA81iQ58

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/2408-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3452-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3452-11-0x0000000010000000-0x000000001004A000-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 908 set thread context of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2408-4-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/2408-8-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/2408-9-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/3452-10-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/3452-11-0x0000000010000000-0x000000001004A000-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
4092	3452	WerFault.exe	84
4764	3452	WerFault.exe	84

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	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83
PID 908 wrote to memory of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83
PID 908 wrote to memory of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83
PID 908 wrote to memory of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83
PID 908 wrote to memory of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83
PID 908 wrote to memory of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83
PID 908 wrote to memory of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83
PID 908 wrote to memory of 2408	908	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	83
PID 2408 wrote to memory of 3452	2408	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	84
PID 2408 wrote to memory of 3452	2408	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	84
PID 2408 wrote to memory of 3452	2408	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	84
PID 2408 wrote to memory of 3452	2408	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	84
PID 2408 wrote to memory of 2064	2408	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	85
PID 2408 wrote to memory of 2064	2408	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	85
PID 2408 wrote to memory of 2064	2408	b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:908
- C:\Users\Admin\AppData\Local\Temp\b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\b62b5bd3e4c242f1bb9c43bf847b3f53_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3452
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 480
      4⤵
      Program crash
      PID:4092
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 488
      4⤵
      Program crash
      PID:4764
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3452 -ip 3452
1⤵
PID:4236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3452 -ip 3452
1⤵
PID:4292

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/908-0-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/908-1-0x0000000000401000-0x0000000000458000-memory.dmp

Filesize
348KB

Download
memory/908-7-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2408-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2408-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2408-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3452-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3452-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

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