a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499

General

Target

a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe
Size

296KB
MD5

931a3a162c8a16c141d12fa0b1c36509
SHA1

11b55d6a5a40dcee509da0e4c8cc96a353e6e35f
SHA256

a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499
SHA512

72223e21d8d8aa128c17403d23822d9d5dea1e581d79e6929110fa4103453960c721990c6ce1f05cc6fe5e90ccbbc967cc1a4a890b6d1f94ec77ebcffac3e5a0
SSDEEP

6144:cfSb2QKX6KRvqDsQBYVndvPabiSHaUPpavnElI:cfw7KZgKndvYPpav3

Score

9^/10

evasion persistence ransomware trojan

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\imifasak = "C:\\Windows\\lvlpomov.exe"	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe

description	pid	process	target process
PID 1524 set thread context of 1344	1524	a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

File opened for modification C:\Windows\lvlpomov.exe explorer.exe
File created C:\Windows\lvlpomov.exe explorer.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

1640 vssadmin.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1132 vssvc.exe
Token: SeRestorePrivilege 1132 vssvc.exe
Token: SeAuditPrivilege 1132 vssvc.exe

description	ioc	process
File opened for modification	C:\Windows\lvlpomov.exe	explorer.exe
File created	C:\Windows\lvlpomov.exe	explorer.exe

pid	process
1640	vssadmin.exe

description	pid	process
Token: SeBackupPrivilege	1132	vssvc.exe
Token: SeRestorePrivilege	1132	vssvc.exe
Token: SeAuditPrivilege	1132	vssvc.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exeexplorer.exe

description	pid	process	target process
PID 1524 wrote to memory of 1344	1524	a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe	explorer.exe
PID 1524 wrote to memory of 1344	1524	a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe	explorer.exe
PID 1524 wrote to memory of 1344	1524	a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe	explorer.exe
PID 1524 wrote to memory of 1344	1524	a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe	explorer.exe
PID 1524 wrote to memory of 1344	1524	a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe	explorer.exe
PID 1344 wrote to memory of 1640	1344	explorer.exe	vssadmin.exe
PID 1344 wrote to memory of 1640	1344	explorer.exe	vssadmin.exe
PID 1344 wrote to memory of 1640	1344	explorer.exe	vssadmin.exe
PID 1344 wrote to memory of 1640	1344	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe
"C:\Users\Admin\AppData\Local\Temp\a033bc4bd6ef532bf15c06c0be8a5d0632cae01002abc5822659170285660499.exe"
1⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1524

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\system32\explorer.exe"
2⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1344

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1640

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1132

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\ProgramData\ewosolyzuhobytal\01000000
Filesize
296KB

MD5
ccb1e47ee7301200d17a238be87b03d7

SHA1
e10f9cc7ea69dc0a30e1172945c3a9666bb6bdad

SHA256
0d1c51109288071963ffda92062d4da36ba6ca02afa14edb631cd61562688766

SHA512
2096c821cc7de80eff8bec9092a54ab607129ec45dd6e61f490083fc6b0f1a792fc42515a21ca17ba757cce49756f11c6e22f7581c651a78b56467fd4b63823a

Download Submit
memory/1344-58-0x0000000000080000-0x00000000000BB000-memory.dmp

Filesize
236KB

Download
memory/1344-60-0x0000000000080000-0x00000000000BB000-memory.dmp

Filesize
236KB

Download
memory/1344-62-0x0000000000099C80-mapping.dmp

Download
memory/1344-64-0x0000000074A51000-0x0000000074A53000-memory.dmp

Filesize
8KB

Download
memory/1344-67-0x0000000000080000-0x00000000000BB000-memory.dmp

Filesize
236KB

Download
memory/1344-69-0x0000000072B11000-0x0000000072B13000-memory.dmp

Filesize
8KB

Download
memory/1524-54-0x0000000075E11000-0x0000000075E13000-memory.dmp

Filesize
8KB

Download
memory/1524-55-0x0000000002610000-0x000000000272E000-memory.dmp

Filesize
1.1MB

Download
memory/1524-56-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1524-66-0x0000000002610000-0x000000000272E000-memory.dmp

Filesize
1.1MB

Download
memory/1640-68-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads