5526e747493f8e529bc5e7eb900394397a7410c2951e98e9a9b1326fb464b955

Analysis

max time kernel
150s
max time network
50s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
27/10/2022, 17:04

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General

Target

Details.lnk
Size

1KB
MD5

f71b18f3dbee01388943e6b7166def8e
SHA1

c249105c5dc25eb1e6ea670325c7edcb1f11a1c0
SHA256

bdf54e7bf0d943f6a42577c1ff2155edfc41e4a34259ca2ff5b561aa0909edc2
SHA512

b38e1988bae8df21b196f10e9308f7130bac17f5224a4d9b2086bac2ca0ffa3d9a33e6160e1a17fba8a6dea48ab4a2025eb427fe37e045280bc11c28398e3cc2

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1696	regsvr32.exe

Loads dropped DLL 2 IoCs

pid	Process
1744	cmd.exe
1696	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
1696	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1720	regsvr32.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe
1376	wermgr.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1720	regsvr32.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 1744	1244	cmd.exe	28
PID 1244 wrote to memory of 1744	1244	cmd.exe	28
PID 1244 wrote to memory of 1744	1244	cmd.exe	28
PID 1744 wrote to memory of 1596	1744	cmd.exe	29
PID 1744 wrote to memory of 1596	1744	cmd.exe	29
PID 1744 wrote to memory of 1596	1744	cmd.exe	29
PID 1744 wrote to memory of 1696	1744	cmd.exe	30
PID 1744 wrote to memory of 1696	1744	cmd.exe	30
PID 1744 wrote to memory of 1696	1744	cmd.exe	30
PID 1744 wrote to memory of 1696	1744	cmd.exe	30
PID 1744 wrote to memory of 1696	1744	cmd.exe	30
PID 1696 wrote to memory of 1720	1696	regsvr32.exe	31
PID 1696 wrote to memory of 1720	1696	regsvr32.exe	31
PID 1696 wrote to memory of 1720	1696	regsvr32.exe	31
PID 1696 wrote to memory of 1720	1696	regsvr32.exe	31
PID 1696 wrote to memory of 1720	1696	regsvr32.exe	31
PID 1696 wrote to memory of 1720	1696	regsvr32.exe	31
PID 1696 wrote to memory of 1720	1696	regsvr32.exe	31
PID 1720 wrote to memory of 1376	1720	regsvr32.exe	32
PID 1720 wrote to memory of 1376	1720	regsvr32.exe	32
PID 1720 wrote to memory of 1376	1720	regsvr32.exe	32
PID 1720 wrote to memory of 1376	1720	regsvr32.exe	32
PID 1720 wrote to memory of 1376	1720	regsvr32.exe	32
PID 1720 wrote to memory of 1376	1720	regsvr32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Details.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c disallowable\bankbook.cmd r3 2.e xe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1744
- - C:\Windows\system32\replace.exe
    replace C:\Windows\system32\regsvr32.exe C:\Users\Admin\AppData\Local\Temp /A
    3⤵
    PID:1596
- - C:\Users\Admin\AppData\Local\Temp\regsvr32.exe
    regsvr32.exe disallowable\tenuit.dat
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    - Suspicious use of WriteProcessMemory
    PID:1696
  - - C:\Windows\SysWOW64\regsvr32.exe
      disallowable\tenuit.dat
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1720
    - - C:\Windows\SysWOW64\wermgr.exe
        
        C:\Windows\SysWOW64\wermgr.exe
        5⤵
        Suspicious behavior: EnumeratesProcesses
        
        PID:1376

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

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/1244-54-0x000007FEFB781000-0x000007FEFB783000-memory.dmp

Filesize
8KB

Download
memory/1376-110-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1376-109-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1720-102-0x0000000000510000-0x0000000000539000-memory.dmp

Filesize
164KB

Download
memory/1720-104-0x0000000000510000-0x0000000000539000-memory.dmp

Filesize
164KB

Download
memory/1720-105-0x0000000000510000-0x0000000000539000-memory.dmp

Filesize
164KB

Download
memory/1720-101-0x0000000000190000-0x00000000001BB000-memory.dmp

Filesize
172KB

Download
memory/1720-108-0x0000000000510000-0x0000000000539000-memory.dmp

Filesize
164KB

Download
memory/1720-100-0x00000000752B1000-0x00000000752B3000-memory.dmp

Filesize
8KB

Download