xtremerat | baf96c3dd1a042de4c16fff10491135b64287549cbdacd14e4b8b0a40789b4c1

General

Target

4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe
Size

340KB
MD5

4c22b4b78f95b0cbb54b25872ec9bd85
SHA1

3eec08e106efd0be7a027d4866c76f423ef39d72
SHA256

baf96c3dd1a042de4c16fff10491135b64287549cbdacd14e4b8b0a40789b4c1
SHA512

b3dabdc14a77f6804e07b410722a0cfa6853d1684071ec317340a794429c18da517d6a7d17ac13ece36a4275da79904a982909a5205133cc8d71012efc5b0b37
SSDEEP

6144:LwQKve6BF/OZQpFPSKLqL75lww45Y6/VPsxY/UJuMCI5odvM3jM65klmb:UQKvzF/Oyv1+P49/S6/LMC+qvMWi

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

boika.zapto.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/700-7-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/700-5-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/700-4-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/1612-9-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/1612-10-0x0000000010000000-0x0000000010048000-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 4108 set thread context of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87

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
1416	1612	WerFault.exe	88
704	1612	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 4108 wrote to memory of 700	4108	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	87
PID 700 wrote to memory of 1612	700	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	88
PID 700 wrote to memory of 1612	700	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	88
PID 700 wrote to memory of 1612	700	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	88
PID 700 wrote to memory of 1612	700	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	88
PID 700 wrote to memory of 1704	700	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	89
PID 700 wrote to memory of 1704	700	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	89
PID 700 wrote to memory of 1704	700	4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Users\Admin\AppData\Local\Temp\4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\4c22b4b78f95b0cbb54b25872ec9bd85_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:700
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1612
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 480
      4⤵
      Program crash
      PID:1416
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 476
      4⤵
      Program crash
      PID:704
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1612 -ip 1612
1⤵
PID:2612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1612 -ip 1612
1⤵
PID:684

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/700-7-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/700-5-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/700-4-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1612-9-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1612-10-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4108-0-0x0000000000400000-0x000000000058C000-memory.dmp

Filesize
1.5MB

Download
memory/4108-1-0x0000000000401000-0x0000000000567000-memory.dmp

Filesize
1.4MB

Download
memory/4108-8-0x0000000000400000-0x000000000058C000-memory.dmp

Filesize
1.5MB

Download

Analysis

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