xtremerat | b45e06c75a16361ee9f4897d5c691724704ebc0afd5611a9aa4eb92dfa4ba2e8

General

Target

3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe
Size

141KB
MD5

3e1d87ed40ee8801075ecc7022bf3c8d
SHA1

8ccc114dc67d0a9cd441d64c7826edb0ea84c8ac
SHA256

b45e06c75a16361ee9f4897d5c691724704ebc0afd5611a9aa4eb92dfa4ba2e8
SHA512

53bd3e44445a02cee128ad1bb86a57d0a6d617890a78ed328299c39666681ede15fea103906ac12ae9c1c28651ee877b865fe9e7074c546b4a206682486d13f4
SSDEEP

3072:DmVZ3bRZW2+dzaw0sMJttlUyFlI+e+ANOdfut8Jj:cRDWB5A80I+NfutIj

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4424-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4424-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4284-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4424-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4284-12-0x0000000010000000-0x000000001004D000-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 1648 set thread context of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4424-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4424-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4424-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4424-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4284-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4424-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4284-12-0x0000000010000000-0x000000001004D000-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
4360	4284	WerFault.exe	85
452	4284	WerFault.exe	85

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	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83
PID 1648 wrote to memory of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83
PID 1648 wrote to memory of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83
PID 1648 wrote to memory of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83
PID 1648 wrote to memory of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83
PID 1648 wrote to memory of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83
PID 1648 wrote to memory of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83
PID 1648 wrote to memory of 4424	1648	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	83
PID 4424 wrote to memory of 4284	4424	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	85
PID 4424 wrote to memory of 4284	4424	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	85
PID 4424 wrote to memory of 4284	4424	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	85
PID 4424 wrote to memory of 4284	4424	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	85
PID 4424 wrote to memory of 2540	4424	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	86
PID 4424 wrote to memory of 2540	4424	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	86
PID 4424 wrote to memory of 2540	4424	3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Users\Admin\AppData\Local\Temp\3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\3e1d87ed40ee8801075ecc7022bf3c8d_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4284
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4284 -s 480
      4⤵
      Program crash
      PID:4360
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4284 -s 488
      4⤵
      Program crash
      PID:452
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4284 -ip 4284
1⤵
PID:856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4284 -ip 4284
1⤵
PID:4144

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/1648-0-0x0000000000400000-0x0000000000440970-memory.dmp

Filesize
258KB

Download
memory/1648-7-0x0000000000400000-0x0000000000440970-memory.dmp

Filesize
258KB

Download
memory/4284-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4284-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4424-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4424-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4424-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4424-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4424-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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