xtremerat | 2e1e4efc1bf6491f49d159a3814e6b6b65b07fb6c890d6125aeef17c9744f58b

General

Target

JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe
Size

33KB
MD5

fad27522f88d833604c58cda87c32bf3
SHA1

7bf839cd135125c8fee42fac5707af1ce2b08f23
SHA256

2e1e4efc1bf6491f49d159a3814e6b6b65b07fb6c890d6125aeef17c9744f58b
SHA512

bfbdd4d8fe53bf1601e7a4b63ff2f353a539c22e71e63b70b372f578045ba44e7d32b58c603fb4b86bb0a4d59b4ba295893905da947563c2c62e0d12bbb84d22
SSDEEP

768:wMuijtHf5g7/IIG3bGcYDBSvFIWuePQDGEsgRMdd5rZHUwbtLNO:5NW71rcYDAWeoDrsEud5rZ0w5N

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/3768-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3972-2-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3768-3-0x0000000010000000-0x000000001004D000-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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
40	2492	Process not Found

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3972-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3768-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3972-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3768-3-0x0000000010000000-0x000000001004D000-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
4920	3768	WerFault.exe	89
3248	3768	WerFault.exe	89

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_fad27522f88d833604c58cda87c32bf3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
5052	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3972 wrote to memory of 3768	3972	JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe	89
PID 3972 wrote to memory of 3768	3972	JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe	89
PID 3972 wrote to memory of 3768	3972	JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe	89
PID 3972 wrote to memory of 3768	3972	JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe	89
PID 3972 wrote to memory of 4820	3972	JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe	91
PID 3972 wrote to memory of 4820	3972	JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe	91
PID 3972 wrote to memory of 4820	3972	JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fad27522f88d833604c58cda87c32bf3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3768
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 484
    3⤵
    - Program crash
    PID:4920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 492
    3⤵
    - Program crash
    PID:3248
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3768 -ip 3768
1⤵
PID:2384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3768 -ip 3768
1⤵
PID:216

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI0IiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODM0MTAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NTUzNjg2NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjY5NzE3OTcyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:5052

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3768-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3768-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3972-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3972-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing