xtremerat | 7dc0f4bfdf1e921511077402ef5ba60205332fb8d46ac2e6056d89c6c2199322

General

Target

d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe
Size

471KB
MD5

d9b393d1ef2427891bc7e4b16a357e26
SHA1

dba9d287db91ab58da8f7b612ed9294039eb5029
SHA256

7dc0f4bfdf1e921511077402ef5ba60205332fb8d46ac2e6056d89c6c2199322
SHA512

0f271f01c101313ced400a0adcf8ce708835ee7070836e7125023ea3674a7774bf79ddf8901b929fcd0439bf70b5f9035765cfa21390e131401da7ebc9bfb163
SSDEEP

6144:uG1eQn11Gba5LIkA29UQ7kU68Y+IJFh7DtswNgFWvAUzs2IoXnr59B1iB0YapS+T:h/11G/Opk6CZD2dWoUzs1o3rXB1HD

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/3628-11-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/4928-14-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/3628-15-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/4928-16-0x0000000010000000-0x000000001004E000-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 2220 set thread context of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3628-5-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/3628-7-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/3628-9-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/3628-11-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/4928-14-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/3628-15-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/4928-16-0x0000000010000000-0x000000001004E000-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
3988	4928	WerFault.exe	83
452	4928	WerFault.exe	83

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	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 2220 wrote to memory of 3628	2220	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	82
PID 3628 wrote to memory of 4928	3628	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	83
PID 3628 wrote to memory of 4928	3628	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	83
PID 3628 wrote to memory of 4928	3628	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	83
PID 3628 wrote to memory of 4928	3628	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	83
PID 3628 wrote to memory of 4176	3628	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	84
PID 3628 wrote to memory of 4176	3628	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	84
PID 3628 wrote to memory of 4176	3628	d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d9b393d1ef2427891bc7e4b16a357e26_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3628
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4928
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 480
      4⤵
      Program crash
      PID:3988
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 500
      4⤵
      Program crash
      PID:452
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4928 -ip 4928
1⤵
PID:3360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4928 -ip 4928
1⤵
PID:1100

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/2220-0-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2220-13-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3628-5-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/3628-7-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/3628-9-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/3628-11-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/3628-15-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4928-14-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4928-16-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download

Analysis

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