xtremerat | 22280a64f89b228bbbf38c12002bc498335af1b66abbc827460669d8e94dea1f

Analysis

max time kernel
94s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/01/2025, 22:21

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General

Target

JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe
Size

33KB
MD5

98b2c8bb6f1c9b40d12e3c551e21a910
SHA1

80aabc3e040b94087c341ad14ce19cbdda02a647
SHA256

22280a64f89b228bbbf38c12002bc498335af1b66abbc827460669d8e94dea1f
SHA512

d7a720c52039178e3edbe994e01f5f302f5fe043a93221500a5aa4d91cff8db6d9d9b70f460029b837e84a21df9f7ba0ed4beb10e9634cf6a0237eb67a674a94
SSDEEP

768:hMuijtHf5g7/IIG3bGcYDBSvFIWuePQDGEsgCBmXRXegg:KNW71rcYDAWeoDrsDM

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

almoalem.myvnc.com

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4884-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3772-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4884-4-0x0000000010000000-0x000000001004D000-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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3772-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4884-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3772-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4884-4-0x0000000010000000-0x000000001004D000-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
4640	4884	WerFault.exe	82
4724	4884	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 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_98b2c8bb6f1c9b40d12e3c551e21a910.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3772 wrote to memory of 4884	3772	JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe	82
PID 3772 wrote to memory of 4884	3772	JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe	82
PID 3772 wrote to memory of 4884	3772	JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe	82
PID 3772 wrote to memory of 4884	3772	JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe	82
PID 3772 wrote to memory of 2448	3772	JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe	83
PID 3772 wrote to memory of 2448	3772	JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe	83
PID 3772 wrote to memory of 2448	3772	JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_98b2c8bb6f1c9b40d12e3c551e21a910.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3772
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4884
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 476
    3⤵
    - Program crash
    PID:4640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 480
    3⤵
    - Program crash
    PID:4724
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4884 -ip 4884
1⤵
PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4884 -ip 4884
1⤵
PID:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3772-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3772-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4884-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4884-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download