xtremerat | 27d15eca0135a936de706cf31b018fd1b8f67d0ba9d2fb0fa60dfaa415a556c0

General

Target

JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe
Size

401KB
MD5

52f03c9b806e0f66a77085a1f340ae0b
SHA1

2f2638ee4f6d3b30e4fd56e9ce80df738dab0999
SHA256

27d15eca0135a936de706cf31b018fd1b8f67d0ba9d2fb0fa60dfaa415a556c0
SHA512

bbe365064b357932b8244170ace3cd3fb0fb6395e8074ee2e42f67e0ebd5a1ba73ce084cd896225da76585283215313eb1a10dcfa05f498f0c08edf03a1e9fab
SSDEEP

12288:P3W0LsQfJpcizk7mgM0LMxxP518rfffDfffFrn:PBoQfXcaHgMfPPEfffDfffF

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

sexy363.no-ip.biz

sexy363.no-ip.info

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4240-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4240-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2952-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4240-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2952-12-0x0000000010000000-0x000000001004D000-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
Xtremerat family
xtremerat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3220 set thread context of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4240-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4240-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4240-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4240-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2952-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4240-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2952-12-0x0000000010000000-0x000000001004D000-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
3456	2952	WerFault.exe	84
996	2952	WerFault.exe	84

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	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3220 wrote to memory of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83
PID 3220 wrote to memory of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83
PID 3220 wrote to memory of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83
PID 3220 wrote to memory of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83
PID 3220 wrote to memory of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83
PID 3220 wrote to memory of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83
PID 3220 wrote to memory of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83
PID 3220 wrote to memory of 4240	3220	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	83
PID 4240 wrote to memory of 2952	4240	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	84
PID 4240 wrote to memory of 2952	4240	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	84
PID 4240 wrote to memory of 2952	4240	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	84
PID 4240 wrote to memory of 2952	4240	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	84
PID 4240 wrote to memory of 2328	4240	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	86
PID 4240 wrote to memory of 2328	4240	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	86
PID 4240 wrote to memory of 2328	4240	JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3220
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52f03c9b806e0f66a77085a1f340ae0b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4240
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2952
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 480
      4⤵
      Program crash
      PID:3456
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 488
      4⤵
      Program crash
      PID:996
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2952 -ip 2952
1⤵
PID:2288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2952 -ip 2952
1⤵
PID:632

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/2952-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2952-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3220-0-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/3220-7-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4240-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4240-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4240-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4240-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4240-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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