xtremerat | 869d5baacdc7a8a57f8702c7904c4b3fc9bd90af70ff08845b83d2b3ff848e40

General

Target

5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
Size

163KB
MD5

5c23c609fee1f330cd584285ab2cdaf6
SHA1

4e80df6d24ae1dc86994347fe6ddcbcb0648f5b6
SHA256

869d5baacdc7a8a57f8702c7904c4b3fc9bd90af70ff08845b83d2b3ff848e40
SHA512

86bc3d0cfe156723ac3c313c11610871313ae65529268c6e8bc382ce494490f33e63fc48139a602c0eb2402b9f4cdff24722116666a166a4c17d410b0bd7812b
SSDEEP

3072:DzgnMZMAht0Nht4pr9NJWqrkuBIH4qx+9gnUhPSNNfX+v+EBEhpa:wCMOpLIqNBgfCuOv+Ev

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

xstrema.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1248-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1248-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1364-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1248-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1364-11-0x0000000010000000-0x000000001004D000-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
Drops file in System32 directory 1 IoCs

Processes:

5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

description ioc process

File created C:\Windows\SysWOW64\ 5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

description	ioc	process
File created	C:\Windows\SysWOW64\	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

description	pid	process	target process
PID 3312 set thread context of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1248-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1248-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1248-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1248-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1364-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1248-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1364-11-0x0000000010000000-0x000000001004D000-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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4932 1364 WerFault.exe svchost.exe
812 1364 WerFault.exe svchost.exe

pid	pid_target	process	target process
4932	1364	WerFault.exe	svchost.exe
812	1364	WerFault.exe	svchost.exe

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

Processes:

svchost.exe5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

pid process

3312 5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

pid	process
3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe

description	pid	process	target process
PID 3312 wrote to memory of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
PID 3312 wrote to memory of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
PID 3312 wrote to memory of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
PID 3312 wrote to memory of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
PID 3312 wrote to memory of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
PID 3312 wrote to memory of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
PID 3312 wrote to memory of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
PID 3312 wrote to memory of 1248	3312	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
PID 1248 wrote to memory of 1364	1248	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	svchost.exe
PID 1248 wrote to memory of 1364	1248	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	svchost.exe
PID 1248 wrote to memory of 1364	1248	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	svchost.exe
PID 1248 wrote to memory of 1364	1248	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	svchost.exe
PID 1248 wrote to memory of 232	1248	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	msedge.exe
PID 1248 wrote to memory of 232	1248	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	msedge.exe
PID 1248 wrote to memory of 232	1248	5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe	msedge.exe

C:\Users\Admin\AppData\Local\Temp\5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3312
- C:\Users\Admin\AppData\Local\Temp\5c23c609fee1f330cd584285ab2cdaf6_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1248
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1364
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 480
      4⤵
      Program crash
      PID:4932
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 488
      4⤵
      Program crash
      PID:812
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1364 -ip 1364
1⤵
PID:4832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1364 -ip 1364
1⤵
PID:4732

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/1248-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1248-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1248-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1248-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1248-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1364-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1364-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3312-0-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3312-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads