xtremerat | af951baf282071dbaa566ed420ed6d7e23ac8c614fa154d6f0069d981c83fd3d

General

Target

3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe
Size

81KB
MD5

3f62ab7b6ee72afeead55185c04c4616
SHA1

df0c6e00a00578e1725273eea97f73d9de832b97
SHA256

af951baf282071dbaa566ed420ed6d7e23ac8c614fa154d6f0069d981c83fd3d
SHA512

a368aff28d3a24eac13a5e84887d5bea9e3209c93249473c478571a69874358310a21bb52644793c9d2d5b7b9866d1578211be58a833fd6867633e4c6e9c3da6
SSDEEP

1536:WG2EnTramCVTJ10e9yhVu6LnuO+riYw7ePFy2y75AMH:WynvBCVTJ10ey0EKz4ztJH

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

ianouar25.zapto.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/2788-6-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/2788-7-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/2540-12-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/2788-13-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/2540-14-0x0000000010000000-0x0000000010048000-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 2196 set thread context of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2788-3-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/2788-5-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/2788-6-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/2788-7-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/2540-12-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/2788-13-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/2540-14-0x0000000010000000-0x0000000010048000-memory.dmp	upx

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

System Information Discovery
T1082

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	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2196 wrote to memory of 2788	2196	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	30
PID 2788 wrote to memory of 2540	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	31
PID 2788 wrote to memory of 2540	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	31
PID 2788 wrote to memory of 2540	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	31
PID 2788 wrote to memory of 2540	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	31
PID 2788 wrote to memory of 2540	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	31
PID 2788 wrote to memory of 2812	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	32
PID 2788 wrote to memory of 2812	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	32
PID 2788 wrote to memory of 2812	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	32
PID 2788 wrote to memory of 2812	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	32
PID 2788 wrote to memory of 2812	2788	3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3f62ab7b6ee72afeead55185c04c4616_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2540
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2812

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/2196-0-0x0000000073FA1000-0x0000000073FA2000-memory.dmp

Filesize
4KB

Download
memory/2196-2-0x0000000073FA0000-0x000000007454B000-memory.dmp

Filesize
5.7MB

Download
memory/2196-1-0x0000000073FA0000-0x000000007454B000-memory.dmp

Filesize
5.7MB

Download
memory/2196-8-0x0000000073FA0000-0x000000007454B000-memory.dmp

Filesize
5.7MB

Download
memory/2540-9-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2540-12-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2540-14-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-3-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-5-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-6-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-7-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2788-13-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

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