xtremerat | bd4236ed5e0595110de66f110d47ee454b6a1b82f2e5b177c4e821107a33866e

General

Target

6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe
Size

424KB
MD5

6d4ffa294c5855ef328efc08a7039634
SHA1

ba6888c8e0600ecb75c0240cb9e896cb99297765
SHA256

bd4236ed5e0595110de66f110d47ee454b6a1b82f2e5b177c4e821107a33866e
SHA512

b1eed03bdebc91a0b66f41f9d3a40089af76f8d5d5581a3fe028401395cb5c654bd968d97cb405729e878fca323796e95ff73b1b92983bc77771e47473031e11
SSDEEP

6144:cE9s97GiGca1hQNO8k5c5ZHey0mK0Ac8/+++++++++++++85YSd1B59kmK20FQM8:vcGd85+y7A75Y61b9ksndnL

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/1264-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1264-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2192-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1264-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2192-11-0x0000000010000000-0x000000001004D000-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 1548 set thread context of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1264-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1264-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1264-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1264-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2192-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1264-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2192-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
4868	1548	WerFault.exe	83
4992	2192	WerFault.exe	89
4840	2192	WerFault.exe	89
4528	1548	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	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86
PID 1548 wrote to memory of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86
PID 1548 wrote to memory of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86
PID 1548 wrote to memory of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86
PID 1548 wrote to memory of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86
PID 1548 wrote to memory of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86
PID 1548 wrote to memory of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86
PID 1548 wrote to memory of 1264	1548	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	86
PID 1264 wrote to memory of 2192	1264	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	89
PID 1264 wrote to memory of 2192	1264	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	89
PID 1264 wrote to memory of 2192	1264	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	89
PID 1264 wrote to memory of 2192	1264	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	89
PID 1264 wrote to memory of 3996	1264	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	91
PID 1264 wrote to memory of 3996	1264	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	91
PID 1264 wrote to memory of 3996	1264	6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Users\Admin\AppData\Local\Temp\6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\6d4ffa294c5855ef328efc08a7039634_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1264
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2192
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2192 -s 480
      4⤵
      Program crash
      PID:4992
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2192 -s 488
      4⤵
      Program crash
      PID:4840
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 496
  2⤵
  - Program crash
  PID:4868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 464
  2⤵
  - Program crash
  PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1548 -ip 1548
1⤵
PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2192 -ip 2192
1⤵
PID:3988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2192 -ip 2192
1⤵
PID:3320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1548 -ip 1548
1⤵
PID:400

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/1264-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1264-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1264-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1264-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1264-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1548-0-0x0000000000400000-0x0000000000519000-memory.dmp

Filesize
1.1MB

Download
memory/1548-13-0x0000000000400000-0x0000000000519000-memory.dmp

Filesize
1.1MB

Download
memory/2192-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2192-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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