xtremerat | b5c394694e4f01b7d8a9f3b1e702089aa163477e26f2954d30abfd025ce287e9

Analysis

max time kernel
93s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15/12/2024, 14:08

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General

Target

f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe
Size

33KB
MD5

f459d03a15ead8da9b0823ec359263b2
SHA1

ca913d60a077e822a0445f69afa9375c46cde751
SHA256

b5c394694e4f01b7d8a9f3b1e702089aa163477e26f2954d30abfd025ce287e9
SHA512

c6fb2422259825ab3d7856c0384fa6d230906bdf684d1aa4403a70e9f0719d72320ff047b653f687d4e3122ea2e2768e9e9ca4670ae822e68861334a23856472
SSDEEP

768:xMuijtHf5g7/IIG3bGcYDBSvFIWuePQDGEsgRMdd5rd54Y5sR6nkhnvS:aNW71rcYDAWeoDrsEud5rdKY58nv

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4624-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1404-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4624-4-0x0000000010000000-0x000000001004D000-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/1404-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4624-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1404-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4624-4-0x0000000010000000-0x000000001004D000-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
2720	4624	WerFault.exe	83
2308	4624	WerFault.exe	83

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	f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 4624	1404	f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe	83
PID 1404 wrote to memory of 4624	1404	f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe	83
PID 1404 wrote to memory of 4624	1404	f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe	83
PID 1404 wrote to memory of 4624	1404	f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe	83
PID 1404 wrote to memory of 2856	1404	f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe	84
PID 1404 wrote to memory of 2856	1404	f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe	84
PID 1404 wrote to memory of 2856	1404	f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f459d03a15ead8da9b0823ec359263b2_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4624
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4624 -s 480
    3⤵
    - Program crash
    PID:2720
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4624 -s 504
    3⤵
    - Program crash
    PID:2308
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4624 -ip 4624
1⤵
PID:2032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4624 -ip 4624
1⤵
PID:3024

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/1404-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1404-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4624-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4624-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download