xtremerat | 1eab80fa8682549feef815fac009aadb230f241f5ce91b43ca90f7dd3c05ee20

General

Target

JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe
Size

213KB
MD5

f0c3f01ba5bcf8baa4ae9cc55f4533b6
SHA1

b7fffd66846653438b66d4980093b02fe01fa37a
SHA256

1eab80fa8682549feef815fac009aadb230f241f5ce91b43ca90f7dd3c05ee20
SHA512

2c38e3148d09e9febcea7da4fc9a9338a7ec712674223ee86bae1ed89a0ad7c49a2729597ecbd9a1e34a37e46d3a66fd0dc83d48d2d990eb9fe7ca5969c1cf49
SSDEEP

1536:HqNxx8iSxR6rrzUnLJCjkgFPgdpOuTCxHgggLMw9AKQAVXVO+b1oXA5Ooyzvz3GY:36rrzq5gVHgggT9AGVXV95cbW0

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2272-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2272-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2760-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2272-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2760-9-0x0000000010000000-0x000000001004D000-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 3400 set thread context of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2272-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2272-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2272-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2272-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2760-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2272-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2760-9-0x0000000010000000-0x000000001004D000-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
5072	2760	WerFault.exe	83
2540	2760	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	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82
PID 3400 wrote to memory of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82
PID 3400 wrote to memory of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82
PID 3400 wrote to memory of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82
PID 3400 wrote to memory of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82
PID 3400 wrote to memory of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82
PID 3400 wrote to memory of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82
PID 3400 wrote to memory of 2272	3400	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	82
PID 2272 wrote to memory of 2760	2272	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	83
PID 2272 wrote to memory of 2760	2272	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	83
PID 2272 wrote to memory of 2760	2272	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	83
PID 2272 wrote to memory of 2760	2272	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	83
PID 2272 wrote to memory of 3532	2272	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	84
PID 2272 wrote to memory of 3532	2272	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	84
PID 2272 wrote to memory of 3532	2272	JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f0c3f01ba5bcf8baa4ae9cc55f4533b6.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2760
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 492
      4⤵
      Program crash
      PID:5072
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 512
      4⤵
      Program crash
      PID:2540
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2760 -ip 2760
1⤵
PID:3904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2760 -ip 2760
1⤵
PID:4992

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/2272-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2272-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2272-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2272-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2272-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2760-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2760-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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