06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a

General

Target

06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe
Size

698KB
MD5

a1b98369bfe9e349f6623fb86288314f
SHA1

494664da0fab49d06dc44bd4f7c4b79b307f44e8
SHA256

06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a
SHA512

1572afa0da5c6f0ec980535f310785e3dc4ebbd3689eb582fc2e5d6ecdfb2ea0690096e8e95b5adeea59436d9f5bc9ac00ada3d65d2e80cc52b6372aed621313
SSDEEP

12288:pyV/o9AILJQGiL8tIolYvvXFUIhIa59LGyyHNGFyjYXD6dDTmcvmiYS:4qvZiCIukLhpfGjHNGFrT6dnDX

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2032	video8193.dll

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/848-55-0x0000000000400000-0x0000000000542000-memory.dmp	upx
behavioral1/memory/848-62-0x0000000000400000-0x0000000000542000-memory.dmp	upx

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2EDD158F62.LNK	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1EDD158F61.LNK	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1EDD158F61.LNK	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe

Loads dropped DLL 2 IoCs

pid	Process
848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe
848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
536	848	WerFault.exe	26

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2032	video8193.dll

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2032	video8193.dll
Token: SeIncBasePriorityPrivilege	2032	video8193.dll

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 2032	848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe	27
PID 848 wrote to memory of 2032	848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe	27
PID 848 wrote to memory of 2032	848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe	27
PID 848 wrote to memory of 2032	848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe	27
PID 848 wrote to memory of 536	848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe	28
PID 848 wrote to memory of 536	848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe	28
PID 848 wrote to memory of 536	848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe	28
PID 848 wrote to memory of 536	848	06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe	28

C:\Users\Admin\AppData\Local\Temp\06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe
"C:\Users\Admin\AppData\Local\Temp\06b895e8d7f5f1c71393ef37967090836a5d2b33b16f6e035397690abeda392a.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:848
- C:\Users\Admin\AppData\Roaming\windows\video8193.dll
  C:\Users\Admin\AppData\Roaming\windows\video8193.dll
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 848 -s 1020
  2⤵
  - Program crash
  PID:536

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\windows\video8193.dll

Filesize
28KB

MD5
b9ac487f5a9fbfdce09a9ab15ff604e8

SHA1
b01489e4055c6c1a66602f15b1f8bab0d82cdadf

SHA256
80f95de10e11c2f7b1bc2c116958eb6eee2f1dfcb731a648bb6f2f94ac013fec

SHA512
5e2d9d124db9b7099ba40c1be4ac12022df1a3b6515b62a7506a3dd937887b542f97f76d748e5a54e7e2cd018d7175ed2870dc12ef4183eb0c8e5135a970bfec

Download Submit
\Users\Admin\AppData\Roaming\windows\video8193.dll

Filesize
28KB

MD5
b9ac487f5a9fbfdce09a9ab15ff604e8

SHA1
b01489e4055c6c1a66602f15b1f8bab0d82cdadf

SHA256
80f95de10e11c2f7b1bc2c116958eb6eee2f1dfcb731a648bb6f2f94ac013fec

SHA512
5e2d9d124db9b7099ba40c1be4ac12022df1a3b6515b62a7506a3dd937887b542f97f76d748e5a54e7e2cd018d7175ed2870dc12ef4183eb0c8e5135a970bfec

Download Submit
\Users\Admin\AppData\Roaming\windows\video8193.dll

Filesize
28KB

MD5
b9ac487f5a9fbfdce09a9ab15ff604e8

SHA1
b01489e4055c6c1a66602f15b1f8bab0d82cdadf

SHA256
80f95de10e11c2f7b1bc2c116958eb6eee2f1dfcb731a648bb6f2f94ac013fec

SHA512
5e2d9d124db9b7099ba40c1be4ac12022df1a3b6515b62a7506a3dd937887b542f97f76d748e5a54e7e2cd018d7175ed2870dc12ef4183eb0c8e5135a970bfec

Download Submit
memory/848-54-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download
memory/848-55-0x0000000000400000-0x0000000000542000-memory.dmp

Filesize
1.3MB

Download
memory/848-60-0x0000000001F90000-0x0000000001FA0000-memory.dmp

Filesize
64KB

Download
memory/848-62-0x0000000000400000-0x0000000000542000-memory.dmp

Filesize
1.3MB

Download
memory/848-63-0x0000000001F90000-0x0000000001FA0000-memory.dmp

Filesize
64KB

Download

Analysis

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