1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439

Analysis

max time kernel
286s
max time network
384s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 20:18

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General

Target

1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe
Size

525KB
MD5

0c08ae9498627dd8f85286901876a1a3
SHA1

9abfc57850b57259b24c107b287deb91f1e38b40
SHA256

1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439
SHA512

79556bb8f04a202ad280c4fe0028158e5eee4c276c14a99b6b232aee30fd58c577e6945bc590961903bbbb016d5bf3d64398b84aaaebe01f22ae7f82c200b1b6
SSDEEP

6144:KYjrEXNj3u7e4Rp9s6HYtVLCfOrpwbcG6perQE5pVuaGvX9WD9MD4t58TT4slcpx:jjQXUe4RHHYtEfwC5TPW4g42QjZ

Score

8^/10

aspackv2

Malware Config

Signatures

ASPack v2.12-2.42 6 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x0008000000012731-79.dat	aspack_v212_v242
behavioral1/files/0x0008000000012731-80.dat	aspack_v212_v242
behavioral1/files/0x0008000000012731-81.dat	aspack_v212_v242
behavioral1/files/0x0008000000012731-83.dat	aspack_v212_v242
behavioral1/files/0x0008000000012731-87.dat	aspack_v212_v242
behavioral1/files/0x0008000000012731-106.dat	aspack_v212_v242

Executes dropped EXE 2 IoCs

pid	Process
1616	SearchIndexer.exe
1608	SearchIndexer.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SearchIndexer.lnk	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe

Loads dropped DLL 3 IoCs

pid	Process
996	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe
996	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe
996	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 852 set thread context of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 1616 set thread context of 1608	1616	SearchIndexer.exe	30

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

System Information Discovery
T1082

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
996	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 852 wrote to memory of 996	852	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	28
PID 996 wrote to memory of 1616	996	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	29
PID 996 wrote to memory of 1616	996	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	29
PID 996 wrote to memory of 1616	996	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	29
PID 996 wrote to memory of 1616	996	1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe	29
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30
PID 1616 wrote to memory of 1608	1616	SearchIndexer.exe	30

C:\Users\Admin\AppData\Local\Temp\1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe
"C:\Users\Admin\AppData\Local\Temp\1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:852
- C:\Users\Admin\AppData\Local\Temp\1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe
  C:\Users\Admin\AppData\Local\Temp\1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439.exe
  2⤵
  - Drops startup file
  - Loads dropped DLL
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Users\Admin\AppData\Local\Reference Assemblies\SearchIndexer.exe
    -fst
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1616
  - - C:\Users\Admin\AppData\Local\Reference Assemblies\SearchIndexer.exe
      "C:\Users\Admin\AppData\Local\Reference Assemblies\SearchIndexer.exe"
      4⤵
      Executes dropped EXE
      PID:1608

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\Reference Assemblies\SearchIndexer.exe

Filesize
525KB

MD5
0c08ae9498627dd8f85286901876a1a3

SHA1
9abfc57850b57259b24c107b287deb91f1e38b40

SHA256
1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439

SHA512
79556bb8f04a202ad280c4fe0028158e5eee4c276c14a99b6b232aee30fd58c577e6945bc590961903bbbb016d5bf3d64398b84aaaebe01f22ae7f82c200b1b6

Download Submit
C:\Users\Admin\AppData\Local\Reference Assemblies\SearchIndexer.exe

Filesize
525KB

MD5
0c08ae9498627dd8f85286901876a1a3

SHA1
9abfc57850b57259b24c107b287deb91f1e38b40

SHA256
1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439

SHA512
79556bb8f04a202ad280c4fe0028158e5eee4c276c14a99b6b232aee30fd58c577e6945bc590961903bbbb016d5bf3d64398b84aaaebe01f22ae7f82c200b1b6

Download Submit
C:\Users\Admin\AppData\Local\Reference Assemblies\SearchIndexer.exe

Filesize
525KB

MD5
0c08ae9498627dd8f85286901876a1a3

SHA1
9abfc57850b57259b24c107b287deb91f1e38b40

SHA256
1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439

SHA512
79556bb8f04a202ad280c4fe0028158e5eee4c276c14a99b6b232aee30fd58c577e6945bc590961903bbbb016d5bf3d64398b84aaaebe01f22ae7f82c200b1b6

Download Submit
\Users\Admin\AppData\Local\Reference Assemblies\SearchIndexer.exe

Filesize
525KB

MD5
0c08ae9498627dd8f85286901876a1a3

SHA1
9abfc57850b57259b24c107b287deb91f1e38b40

SHA256
1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439

SHA512
79556bb8f04a202ad280c4fe0028158e5eee4c276c14a99b6b232aee30fd58c577e6945bc590961903bbbb016d5bf3d64398b84aaaebe01f22ae7f82c200b1b6

Download Submit
\Users\Admin\AppData\Local\Reference Assemblies\SearchIndexer.exe

Filesize
525KB

MD5
0c08ae9498627dd8f85286901876a1a3

SHA1
9abfc57850b57259b24c107b287deb91f1e38b40

SHA256
1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439

SHA512
79556bb8f04a202ad280c4fe0028158e5eee4c276c14a99b6b232aee30fd58c577e6945bc590961903bbbb016d5bf3d64398b84aaaebe01f22ae7f82c200b1b6

Download Submit
\Users\Admin\AppData\Local\Reference Assemblies\SearchIndexer.exe

Filesize
525KB

MD5
0c08ae9498627dd8f85286901876a1a3

SHA1
9abfc57850b57259b24c107b287deb91f1e38b40

SHA256
1b3cf050d626706d32c1c2c1cbd4975d519cfbdb9bca0f2e66b7e1120030b439

SHA512
79556bb8f04a202ad280c4fe0028158e5eee4c276c14a99b6b232aee30fd58c577e6945bc590961903bbbb016d5bf3d64398b84aaaebe01f22ae7f82c200b1b6

Download Submit
memory/852-75-0x0000000002E00000-0x0000000002F12000-memory.dmp

Filesize
1.1MB

Download
memory/852-55-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/852-56-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/852-54-0x0000000075E01000-0x0000000075E03000-memory.dmp

Filesize
8KB

Download
memory/852-77-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/996-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-72-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-78-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1616-86-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/1616-85-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/1616-107-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download