xtremerat | 2999f314a6bed51858277069fbaf9ca01d506871d7e7bd4798e76ebc977b4762

General

Target

JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
Size

124KB
MD5

423c6130a471c600f8d376528702fd15
SHA1

022e4a467677920b4cc46bcbfaceb35bccf6274c
SHA256

2999f314a6bed51858277069fbaf9ca01d506871d7e7bd4798e76ebc977b4762
SHA512

36608ce1a457c8a358c0752d0975ca7d5e8b44eda87851d6032bd6eeba4bc11cd9d83f77037080a3d7ac98a8f40a63f1dbdea11ae5327fd745f71d7ea3d13210
SSDEEP

3072:/7qXvBlJ9ks1I3cieVDlrJA0iqqyXI5hgsODDjKP:zEvLJys1XieVDBfXEh18S

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

dannymatrix.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2276-6-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/2276-5-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/2204-7-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/2276-10-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/2204-11-0x0000000010000000-0x000000001004F000-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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\114download.jpg.exe	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
File created	C:\Windows\SysWOW64\114download.jpg	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3676 set thread context of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2276-2-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2276-4-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2276-6-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2276-5-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2204-7-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2276-10-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2204-11-0x0000000010000000-0x000000001004F000-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
4580	2204	WerFault.exe	84
3104	2204	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_423c6130a471c600f8d376528702fd15.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83
PID 3676 wrote to memory of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83
PID 3676 wrote to memory of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83
PID 3676 wrote to memory of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83
PID 3676 wrote to memory of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83
PID 3676 wrote to memory of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83
PID 3676 wrote to memory of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83
PID 3676 wrote to memory of 2276	3676	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	83
PID 2276 wrote to memory of 2204	2276	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	84
PID 2276 wrote to memory of 2204	2276	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	84
PID 2276 wrote to memory of 2204	2276	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	84
PID 2276 wrote to memory of 2204	2276	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	84
PID 2276 wrote to memory of 3504	2276	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	85
PID 2276 wrote to memory of 3504	2276	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	85
PID 2276 wrote to memory of 3504	2276	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_423c6130a471c600f8d376528702fd15.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3676
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_423c6130a471c600f8d376528702fd15.exe"
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2276
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2204
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 480
      4⤵
      Program crash
      PID:4580
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 488
      4⤵
      Program crash
      PID:3104
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2204 -ip 2204
1⤵
PID:4248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2204 -ip 2204
1⤵
PID:1896

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

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Downloads

memory/2204-7-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2204-11-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2276-2-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2276-4-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2276-6-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2276-5-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2276-10-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download

Analysis

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