xtremerat | 8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73

Analysis

max time kernel
170s
max time network
181s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 05:39

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General

Target

8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe
Size

33KB
MD5

0abb144342bb3a41039b8724b9789e30
SHA1

5e5e6c0909d88f51be2d7024cd8e94ea433ac414
SHA256

8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73
SHA512

53ed6ec845a4600ffc7311e33bcd230a9d1ab59744265b9fd7e1cdc303a618f5e4abc5a57652eec45358ac4a6eeb7b1b7f41d262338fcef5d5bf72de2bd6b76b
SSDEEP

768:jMuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66l7tzvAxFlfYgsK:4NW71rcYDAWeotvXlpKFlQ

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

aljokerd.zapto.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/900-133-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/900-134-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1704-135-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/900-136-0x0000000010000000-0x000000001004D000-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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1704-132-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/900-134-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1704-135-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/900-136-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2920	900	WerFault.exe	84
5080	900	WerFault.exe	84

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 900	1704	8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe	84
PID 1704 wrote to memory of 900	1704	8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe	84
PID 1704 wrote to memory of 900	1704	8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe	84
PID 1704 wrote to memory of 900	1704	8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe	84
PID 1704 wrote to memory of 1364	1704	8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe	85
PID 1704 wrote to memory of 1364	1704	8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe	85
PID 1704 wrote to memory of 1364	1704	8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe	85

C:\Users\Admin\AppData\Local\Temp\8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe
"C:\Users\Admin\AppData\Local\Temp\8b6dd0deedaf1c0ecebd0e0ddb65d48ded2ba5eebdf3dc5669f3ad03b55c9f73.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:900
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 480
    3⤵
    - Program crash
    PID:2920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 488
    3⤵
    - Program crash
    PID:5080
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:1364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 900 -ip 900
1⤵
PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 900 -ip 900
1⤵
PID:1208

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/900-133-0x0000000000000000-mapping.dmp

Download
memory/900-134-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/900-136-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1704-132-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1704-135-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download