xtremerat | f3fdefc35425f5662857e824d3f3917e585279c94da1363989e0558dd0ab18c4

Analysis

max time kernel
139s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-10-2024 05:17

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General

Target

55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe
Size

109KB
MD5

55a9edfba6daa06af8625525195a7410
SHA1

09448ecf4dffc65c363932f3631c6e99cb0122e7
SHA256

f3fdefc35425f5662857e824d3f3917e585279c94da1363989e0558dd0ab18c4
SHA512

e0c8ebf92bbf02bd5171ad57e18bab6fc69322201f02a73037cc97a532ed422ff0e6b0ba2f6616d4b629a7e52c1438bc90c259c9017dae95b0e4233f2a79efd0
SSDEEP

3072:KtfBGKgiWncy+o1z1Us4LfI0OisVoVGJAT:8fBGxiWnoo1z+s014aGJAT

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 1 IoCs

resource	yara_rule
behavioral2/memory/3740-2-0x0000000010000000-0x000000001004D000-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 3196 set thread context of 3740	3196	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe	84

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3740-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3740-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1116	3740	WerFault.exe	84

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	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 3740	3196	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe	84
PID 3196 wrote to memory of 3740	3196	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe	84
PID 3196 wrote to memory of 3740	3196	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe	84
PID 3196 wrote to memory of 3740	3196	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe	84
PID 3196 wrote to memory of 3740	3196	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe	84
PID 3196 wrote to memory of 3740	3196	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe	84
PID 3196 wrote to memory of 3740	3196	55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Users\Admin\AppData\Local\Temp\55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\55a9edfba6daa06af8625525195a7410_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 184
    3⤵
    - Program crash
    PID:1116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3740 -ip 3740
1⤵
PID:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3196-0-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/3740-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3740-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download