xtremerat | 64c701e1b73f3dc9456658ca935a0408f17d229fc32e5965c35ad4e0866ffa1b

General

Target

876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
Size

132KB
MD5

876c9a1a924cd75522444a2508f39ccb
SHA1

37053fe8920bb6ec5f2b4b6fb87c7f863914c5f7
SHA256

64c701e1b73f3dc9456658ca935a0408f17d229fc32e5965c35ad4e0866ffa1b
SHA512

bf5370c98be875d51bf73a5255a37025298d7a7aa6469bfd096da5cfcae59d9b5ffbf0cf0a8a97b625c152543993ef8cb21538d91cadbdcc47c92e2629e5a3a7
SSDEEP

3072:NVdEcMNi/l6+m3bmUTqXGjvBiab8xmztNWyysCEldIUg:pEZNEl6+UmvsBJAatQuU

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

princedz.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2628-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2628-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3400-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2628-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3400-13-0x0000000010000000-0x000000001004D000-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 2600 set thread context of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 set thread context of 0	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2628-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2628-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2628-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2628-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3400-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2628-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3400-13-0x0000000010000000-0x000000001004D000-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
1892	3400	WerFault.exe	85
2408	3400	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	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 wrote to memory of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 wrote to memory of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 wrote to memory of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 wrote to memory of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 wrote to memory of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 wrote to memory of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 wrote to memory of 2628	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	84
PID 2600 wrote to memory of 0	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
PID 2600 wrote to memory of 0	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
PID 2600 wrote to memory of 0	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
PID 2600 wrote to memory of 0	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
PID 2600 wrote to memory of 0	2600	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
PID 2628 wrote to memory of 3400	2628	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	85
PID 2628 wrote to memory of 3400	2628	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	85
PID 2628 wrote to memory of 3400	2628	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	85
PID 2628 wrote to memory of 3400	2628	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	85
PID 2628 wrote to memory of 4692	2628	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	86
PID 2628 wrote to memory of 4692	2628	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	86
PID 2628 wrote to memory of 4692	2628	876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Users\Admin\AppData\Local\Temp\876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\876c9a1a924cd75522444a2508f39ccb_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3400
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3400 -s 480
      4⤵
      Program crash
      PID:1892
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3400 -s 488
      4⤵
      Program crash
      PID:2408
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3400 -ip 3400
1⤵
PID:4512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3400 -ip 3400
1⤵
PID:4336

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/2600-0-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2600-6-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2628-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2628-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2628-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2628-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2628-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3400-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3400-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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