xtremerat | ee506fffa49d02ac5c0abeeda4c47baecacb14f2da5daae59adc35a384b2e1e0

General

Target

JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe
Size

216KB
MD5

232e2cf46a9aa90786ecad7a1a160bac
SHA1

0353e3de4430892005cd57c670d63137ca7feb2e
SHA256

ee506fffa49d02ac5c0abeeda4c47baecacb14f2da5daae59adc35a384b2e1e0
SHA512

9595ac9a1d0463dbce164f0f3bf2c8b988214d40c358dcea15cebe05ad12a5178dd061d09f5bf9095c900e3b576581769dfb212e9385870247de2151b0a59146
SSDEEP

6144:aOksXgnmBnMmjfvurcSKY0K0efL5cD3Is5P07:aOk74MmCHOej5cD3Is5Ps

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

koo.zapto.org

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/1068-23-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4220-24-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4220-25-0x0000000010000000-0x000000001004D000-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 2 IoCs

description	pid	Process	procid_target
PID 2652 set thread context of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 3152 set thread context of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3152-8-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/memory/3152-10-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/memory/3152-12-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/memory/1068-17-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1068-19-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3152-22-0x0000000000400000-0x000000000041B000-memory.dmp	upx
behavioral2/memory/1068-23-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4220-24-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4220-25-0x0000000010000000-0x000000001004D000-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
452	4220	WerFault.exe	87
2536	4220	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 4 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_232e2cf46a9aa90786ecad7a1a160bac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe
3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 2652 wrote to memory of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 2652 wrote to memory of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 2652 wrote to memory of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 2652 wrote to memory of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 2652 wrote to memory of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 2652 wrote to memory of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 2652 wrote to memory of 3152	2652	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	85
PID 3152 wrote to memory of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86
PID 3152 wrote to memory of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86
PID 3152 wrote to memory of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86
PID 3152 wrote to memory of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86
PID 3152 wrote to memory of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86
PID 3152 wrote to memory of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86
PID 3152 wrote to memory of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86
PID 3152 wrote to memory of 1068	3152	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	86
PID 1068 wrote to memory of 4220	1068	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	87
PID 1068 wrote to memory of 4220	1068	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	87
PID 1068 wrote to memory of 4220	1068	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	87
PID 1068 wrote to memory of 4220	1068	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	87
PID 1068 wrote to memory of 5008	1068	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	90
PID 1068 wrote to memory of 5008	1068	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	90
PID 1068 wrote to memory of 5008	1068	JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3152
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_232e2cf46a9aa90786ecad7a1a160bac.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1068
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:4220
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4220 -s 488
        5⤵
        Program crash
        
        PID:452
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4220 -s 496
        5⤵
        Program crash
        
        PID:2536
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      4⤵
      PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4220 -ip 4220
1⤵
PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4220 -ip 4220
1⤵
PID:3116

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/1068-17-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1068-23-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1068-19-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2652-1-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/2652-2-0x0000000000494000-0x0000000000495000-memory.dmp

Filesize
4KB

Download
memory/2652-4-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/2652-3-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/2652-5-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/2652-0-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/2652-15-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/3152-12-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3152-10-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3152-22-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3152-20-0x0000000000420000-0x00000000004E9000-memory.dmp

Filesize
804KB

Download
memory/3152-8-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4220-24-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4220-25-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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