xtremerat | c3a5b5451426106bdf857dca1f6c56f6fa8607d1c682c676f50db752acd4aab2

General

Target

75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe
Size

117KB
MD5

75e59c17a1b56a7a68b87110df188b4c
SHA1

d332dd0637b6070d2d9a5e52667d8178e80164dd
SHA256

c3a5b5451426106bdf857dca1f6c56f6fa8607d1c682c676f50db752acd4aab2
SHA512

f4dcf6aef9eaf37c4cce6a8725c058b1c25d6dec120cdbfef0409e62fa856c2e87b224b5c8389dde0ed8702abff5cb698f90a5cb1d32bf7c9f231016be4bd588
SSDEEP

1536:dReaCi4LtqlqHrwr2zST+T/e8pDYJ0TFsII2jENAgEUYrXk:dReaCi4JMr4ST+T/dJDsIIKvgEtk

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

franco1.no-ip.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/2356-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4208-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2356-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4208-11-0x0000000010000000-0x000000001004D000-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 1376 set thread context of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2356-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2356-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2356-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2356-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4208-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2356-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4208-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4836	4208	WerFault.exe	88
1860	4208	WerFault.exe	88

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	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86
PID 1376 wrote to memory of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86
PID 1376 wrote to memory of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86
PID 1376 wrote to memory of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86
PID 1376 wrote to memory of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86
PID 1376 wrote to memory of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86
PID 1376 wrote to memory of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86
PID 1376 wrote to memory of 2356	1376	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	86
PID 2356 wrote to memory of 4208	2356	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	88
PID 2356 wrote to memory of 4208	2356	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	88
PID 2356 wrote to memory of 4208	2356	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	88
PID 2356 wrote to memory of 4208	2356	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	88
PID 2356 wrote to memory of 1632	2356	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	89
PID 2356 wrote to memory of 1632	2356	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	89
PID 2356 wrote to memory of 1632	2356	75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Local\Temp\75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\75e59c17a1b56a7a68b87110df188b4c_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4208
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4208 -s 476
      4⤵
      Program crash
      PID:4836
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4208 -s 500
      4⤵
      Program crash
      PID:1860
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4208 -ip 4208
1⤵
PID:696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4208 -ip 4208
1⤵
PID:4112

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

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Downloads

memory/2356-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2356-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2356-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2356-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2356-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4208-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4208-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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