xtremerat | b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d

Analysis

max time kernel
140s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 09:02

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General

Target

b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe
Size

33KB
MD5

68056fc40faf0cf930a17f40301cbc31
SHA1

47257ce954bd7ed0083d67aa49da1ddd2bd99f4b
SHA256

b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d
SHA512

1601165c5dc1094ab2c99425da5ee9a61744f00df582439ef39b16318917c8a046dfbf4bb026bbfadbff24f4ff1043e3d4a6b7109792918c4463d55a2cf8044f
SSDEEP

768:cMuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66lXkwVdVfEr:VNW71rcYDAWeotvXlUqPM

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

eiqa-2.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/2608-132-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4860-133-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/2608-134-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4860-135-0x0000000010000000-0x000000001004D000-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 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2608-132-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2608-134-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4860-135-0x0000000010000000-0x000000001004D000-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
5064	4860	WerFault.exe	79
1276	4860	WerFault.exe	79

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 4860	2608	b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe	79
PID 2608 wrote to memory of 4860	2608	b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe	79
PID 2608 wrote to memory of 4860	2608	b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe	79
PID 2608 wrote to memory of 4860	2608	b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe	79
PID 2608 wrote to memory of 636	2608	b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe	80
PID 2608 wrote to memory of 636	2608	b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe	80
PID 2608 wrote to memory of 636	2608	b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe	80

C:\Users\Admin\AppData\Local\Temp\b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe
"C:\Users\Admin\AppData\Local\Temp\b2b43b30096accfd747a1e866dbcaab6b7d63b5710fbecfd743835e214bc636d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:4860
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 488
    3⤵
    - Program crash
    PID:5064
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 512
    3⤵
    - Program crash
    PID:1276
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4860 -ip 4860
1⤵
PID:1440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4860 -ip 4860
1⤵
PID:396

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

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Downloads

memory/2608-132-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2608-134-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4860-135-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download