5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a

Analysis

max time kernel
184s
max time network
193s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 08:46

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General

Target

5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe
Size

689KB
MD5

7305e7d72a3143abc5a7cd636300ec62
SHA1

25c657e556b16098d7738e6e17670f022384bdef
SHA256

5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a
SHA512

7c3dd25bad0d5ff1d6d6331eebe4a3e3bb19060f5cc20b9f97e665913dd2042dda982390f7c02e0be207c0d60fa9353ab7c616b54ecd3db04028ee33ab4a7e7f
SSDEEP

12288:x+Mhgdjf1Png+/Sjz9aTb7kJ428zbOOTBQxx+B9MdRIcTEpQLw/RKDbFTJ:fET1PrSj5sbi4bH3AQEAl5sbFT

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1280	OTVbfjlm.exe

Loads dropped DLL 1 IoCs

pid	Process
1208	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\windows\CurrentVersion\Run	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\OTVbfjlm = "\"C:\\Program Files\\OTVbfjlm.exe\""	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\OTVbfjlm.exe	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe
File opened for modification	C:\Program Files\OTVbfjlm.exe	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1280	OTVbfjlm.exe
Token: SeIncBasePriorityPrivilege	1280	OTVbfjlm.exe
Token: SeIncBasePriorityPrivilege	1280	OTVbfjlm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 1280	1208	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe	27
PID 1208 wrote to memory of 1280	1208	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe	27
PID 1208 wrote to memory of 1280	1208	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe	27
PID 1208 wrote to memory of 1280	1208	5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe	27

C:\Users\Admin\AppData\Local\Temp\5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe
"C:\Users\Admin\AppData\Local\Temp\5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Program Files\OTVbfjlm.exe
  "C:\Program Files\OTVbfjlm.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1280

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\OTVbfjlm.exe

Filesize
689KB

MD5
7305e7d72a3143abc5a7cd636300ec62

SHA1
25c657e556b16098d7738e6e17670f022384bdef

SHA256
5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a

SHA512
7c3dd25bad0d5ff1d6d6331eebe4a3e3bb19060f5cc20b9f97e665913dd2042dda982390f7c02e0be207c0d60fa9353ab7c616b54ecd3db04028ee33ab4a7e7f

Download Submit
\Program Files\OTVbfjlm.exe

Filesize
689KB

MD5
7305e7d72a3143abc5a7cd636300ec62

SHA1
25c657e556b16098d7738e6e17670f022384bdef

SHA256
5f3f31a051cd1114282d6b1e1340889eeab433cb6e243036a0f0f1ecc918fd6a

SHA512
7c3dd25bad0d5ff1d6d6331eebe4a3e3bb19060f5cc20b9f97e665913dd2042dda982390f7c02e0be207c0d60fa9353ab7c616b54ecd3db04028ee33ab4a7e7f

Download Submit
memory/1208-54-0x00000000759C1000-0x00000000759C3000-memory.dmp

Filesize
8KB

Download
memory/1280-56-0x0000000000000000-mapping.dmp

Download