5304522c3f48984337f18133639815cab62f24ef25407c3a097fcecfc4b4ed9f

Analysis

max time kernel
218s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
28/10/2022, 08:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Contract.lnk
Size

1KB
MD5

c69e380470d25126e26a2ac731f3ee84
SHA1

ddc46580ab308d72176191ed35001830bb76678b
SHA256

03ddebb9718379ba27af2e30ca41a85fddd89fc582468c3eb6066c9b277bd3de
SHA512

d157b382dacc30165160b92e6b8080d5a845502f7a0c783220dc67ddaaa199e4f6a658b71a59990dfda2634e3767f0bb77a24e18945cdefe849d0cd53026f13c

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1408	regsvr32.exe

Loads dropped DLL 2 IoCs

pid	Process
1776	cmd.exe
1408	regsvr32.exe

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

System Information Discovery
T1082

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
1408	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
556	regsvr32.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe
920	wermgr.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
556	regsvr32.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 1776	1944	cmd.exe	28
PID 1944 wrote to memory of 1776	1944	cmd.exe	28
PID 1944 wrote to memory of 1776	1944	cmd.exe	28
PID 1776 wrote to memory of 1212	1776	cmd.exe	29
PID 1776 wrote to memory of 1212	1776	cmd.exe	29
PID 1776 wrote to memory of 1212	1776	cmd.exe	29
PID 1776 wrote to memory of 1408	1776	cmd.exe	30
PID 1776 wrote to memory of 1408	1776	cmd.exe	30
PID 1776 wrote to memory of 1408	1776	cmd.exe	30
PID 1776 wrote to memory of 1408	1776	cmd.exe	30
PID 1776 wrote to memory of 1408	1776	cmd.exe	30
PID 1408 wrote to memory of 556	1408	regsvr32.exe	31
PID 1408 wrote to memory of 556	1408	regsvr32.exe	31
PID 1408 wrote to memory of 556	1408	regsvr32.exe	31
PID 1408 wrote to memory of 556	1408	regsvr32.exe	31
PID 1408 wrote to memory of 556	1408	regsvr32.exe	31
PID 1408 wrote to memory of 556	1408	regsvr32.exe	31
PID 1408 wrote to memory of 556	1408	regsvr32.exe	31
PID 556 wrote to memory of 920	556	regsvr32.exe	32
PID 556 wrote to memory of 920	556	regsvr32.exe	32
PID 556 wrote to memory of 920	556	regsvr32.exe	32
PID 556 wrote to memory of 920	556	regsvr32.exe	32
PID 556 wrote to memory of 920	556	regsvr32.exe	32
PID 556 wrote to memory of 920	556	regsvr32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Contract.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reviewer\ungroomed.cmd vr 32. exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1776
- - C:\Windows\system32\replace.exe
    replace C:\Windows\\system32\\regsvr32.exe C:\Users\Admin\AppData\Local\Temp /A
    3⤵
    PID:1212
- - C:\Users\Admin\AppData\Local\Temp\regsvr32.exe
    regsvr32.exe reviewer\beastly.dat
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    - Suspicious use of WriteProcessMemory
    PID:1408
  - - C:\Windows\SysWOW64\regsvr32.exe
      reviewer\beastly.dat
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:556
    - - C:\Windows\SysWOW64\wermgr.exe
        
        C:\Windows\SysWOW64\wermgr.exe
        5⤵
        Suspicious behavior: EnumeratesProcesses
        
        PID:920

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\regsvr32.exe

Filesize
19KB

MD5
59bce9f07985f8a4204f4d6554cff708

SHA1
645c424974fbe5fe7a04cac73f1c23c96e1570b8

SHA256
ca24aef558647274d019dfb4d7fd1506d84ec278795c30ba53b81bb36130dc57

SHA512
3cf5825a9c7fb80ea0bd36775a92d07f34cd3709ed2c7c8f500f1c8baa5242768f6d575bd2477b77e3f177e7a4994d5c5bddb24c6eb43b60a6bd83ea026a8198

Download Submit
C:\Users\Admin\AppData\Local\Temp\regsvr32.exe

Filesize
19KB

MD5
59bce9f07985f8a4204f4d6554cff708

SHA1
645c424974fbe5fe7a04cac73f1c23c96e1570b8

SHA256
ca24aef558647274d019dfb4d7fd1506d84ec278795c30ba53b81bb36130dc57

SHA512
3cf5825a9c7fb80ea0bd36775a92d07f34cd3709ed2c7c8f500f1c8baa5242768f6d575bd2477b77e3f177e7a4994d5c5bddb24c6eb43b60a6bd83ea026a8198

Download Submit
\Users\Admin\AppData\Local\Temp\regsvr32.exe

Filesize
19KB

MD5
59bce9f07985f8a4204f4d6554cff708

SHA1
645c424974fbe5fe7a04cac73f1c23c96e1570b8

SHA256
ca24aef558647274d019dfb4d7fd1506d84ec278795c30ba53b81bb36130dc57

SHA512
3cf5825a9c7fb80ea0bd36775a92d07f34cd3709ed2c7c8f500f1c8baa5242768f6d575bd2477b77e3f177e7a4994d5c5bddb24c6eb43b60a6bd83ea026a8198

Download Submit
\Users\Admin\AppData\Local\Temp\regsvr32.exe

Filesize
19KB

MD5
59bce9f07985f8a4204f4d6554cff708

SHA1
645c424974fbe5fe7a04cac73f1c23c96e1570b8

SHA256
ca24aef558647274d019dfb4d7fd1506d84ec278795c30ba53b81bb36130dc57

SHA512
3cf5825a9c7fb80ea0bd36775a92d07f34cd3709ed2c7c8f500f1c8baa5242768f6d575bd2477b77e3f177e7a4994d5c5bddb24c6eb43b60a6bd83ea026a8198

Download Submit
memory/556-106-0x0000000000A20000-0x0000000000A49000-memory.dmp

Filesize
164KB

Download
memory/556-103-0x0000000000A20000-0x0000000000A49000-memory.dmp

Filesize
164KB

Download
memory/556-110-0x0000000000A20000-0x0000000000A49000-memory.dmp

Filesize
164KB

Download
memory/556-107-0x00000000001F0000-0x0000000000270000-memory.dmp

Filesize
512KB

Download
memory/556-100-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

Filesize
8KB

Download
memory/556-101-0x0000000000980000-0x0000000000A20000-memory.dmp

Filesize
640KB

Download
memory/556-102-0x0000000000A20000-0x0000000000A49000-memory.dmp

Filesize
164KB

Download
memory/556-104-0x0000000000A20000-0x0000000000A49000-memory.dmp

Filesize
164KB

Download
memory/556-105-0x00000000001F0000-0x0000000000270000-memory.dmp

Filesize
512KB

Download
memory/920-111-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/920-112-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1944-54-0x000007FEFC511000-0x000007FEFC513000-memory.dmp

Filesize
8KB

Download