xtremerat | a769b350f449c9bcaeb5032f03130a914039d7cfd0584534ee15219de1f2e5dc

General

Target

2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe
Size

146KB
MD5

2fd541cafdee4d46f5a2ec1a051e4645
SHA1

f08ffac8fb192eeca68826ff94d048ab788a9987
SHA256

a769b350f449c9bcaeb5032f03130a914039d7cfd0584534ee15219de1f2e5dc
SHA512

94e1e35be08167d3f0dcc1fa439b447a3566d56e0fd641b03abd69ae0172bf301062f18855a8774725e82b085dddd06f1ec45b2b5eae5dbfa2e9f0eb7db4fd39
SSDEEP

3072:lpYhsfT+oc0fz8XDPiMqDU6TlenAogbBjW0+qIpgTBUUF:JfTM0faLts5lYAokBjW0+qiy

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

hackermusa.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/1948-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1948-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/700-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1948-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/700-13-0x0000000010000000-0x000000001004D000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3936 set thread context of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1948-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1948-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1948-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1948-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/700-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1948-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/700-13-0x0000000010000000-0x000000001004D000-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
1980	700	WerFault.exe	87
4048	700	WerFault.exe	87

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	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3936 wrote to memory of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86
PID 3936 wrote to memory of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86
PID 3936 wrote to memory of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86
PID 3936 wrote to memory of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86
PID 3936 wrote to memory of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86
PID 3936 wrote to memory of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86
PID 3936 wrote to memory of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86
PID 3936 wrote to memory of 1948	3936	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	86
PID 1948 wrote to memory of 700	1948	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	87
PID 1948 wrote to memory of 700	1948	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	87
PID 1948 wrote to memory of 700	1948	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	87
PID 1948 wrote to memory of 700	1948	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	87
PID 1948 wrote to memory of 4816	1948	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	88
PID 1948 wrote to memory of 4816	1948	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	88
PID 1948 wrote to memory of 4816	1948	2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Users\Admin\AppData\Local\Temp\2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\2fd541cafdee4d46f5a2ec1a051e4645_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1948
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:700
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 700 -s 348
      4⤵
      Program crash
      PID:1980
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 700 -s 480
      4⤵
      Program crash
      PID:4048
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 700 -ip 700
1⤵
PID:1296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 700 -ip 700
1⤵
PID:3076

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

Loading Replay Monitor...

Downloads

memory/700-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/700-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1948-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1948-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1948-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1948-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1948-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3936-0-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/3936-10-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download

Analysis

Sharing