53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382

General

Target

53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe
Size

238KB
MD5

be009e5259b220643b1299ee87924c48
SHA1

969fc0b582688127aa8cace9307dafb71f997640
SHA256

53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382
SHA512

b4b80629f80cd8d17f52132d5f77854d1399cd5a9e911a101d9d17258ff590e21c900a97efce2e3c6be40796aef1cc91ad793a5611744e77b79bacb0a8eff102
SSDEEP

3072:B5Gqpg+TLvyAGu+drHkCsyAAg0Fu1Y9tHhJXAL/kEtLCuRTLN/Bact8vfWgF9PNn:B11XCsrAOYEtBTL96aq920

Score

9^/10

persistence ransomware

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
Drops startup file 1 IoCs

Processes:

explorer.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b6807533.exe explorer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b6807533.exe	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\b680753 = "C:\\b6807533\\b6807533.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*680753 = "C:\\b6807533\\b6807533.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\b6807533 = "C:\\Users\\Admin\\AppData\\Roaming\\b6807533.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*6807533 = "C:\\Users\\Admin\\AppData\\Roaming\\b6807533.exe"	explorer.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 ip-addr.es
5 myexternalip.com
7 myexternalip.com
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

860 vssadmin.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exeexplorer.exe

pid process

1828 53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe
844 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 916 vssvc.exe
Token: SeRestorePrivilege 916 vssvc.exe
Token: SeAuditPrivilege 916 vssvc.exe

flow	ioc
3	ip-addr.es
5	myexternalip.com
7	myexternalip.com

pid	process
860	vssadmin.exe

pid	process
1828	53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe
844	explorer.exe

description	pid	process
Token: SeBackupPrivilege	916	vssvc.exe
Token: SeRestorePrivilege	916	vssvc.exe
Token: SeAuditPrivilege	916	vssvc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exeexplorer.exe

description	pid	process	target process
PID 1828 wrote to memory of 844	1828	53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe	explorer.exe
PID 1828 wrote to memory of 844	1828	53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe	explorer.exe
PID 1828 wrote to memory of 844	1828	53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe	explorer.exe
PID 1828 wrote to memory of 844	1828	53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe	explorer.exe
PID 844 wrote to memory of 1160	844	explorer.exe	svchost.exe
PID 844 wrote to memory of 1160	844	explorer.exe	svchost.exe
PID 844 wrote to memory of 1160	844	explorer.exe	svchost.exe
PID 844 wrote to memory of 1160	844	explorer.exe	svchost.exe
PID 844 wrote to memory of 860	844	explorer.exe	vssadmin.exe
PID 844 wrote to memory of 860	844	explorer.exe	vssadmin.exe
PID 844 wrote to memory of 860	844	explorer.exe	vssadmin.exe
PID 844 wrote to memory of 860	844	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe
"C:\Users\Admin\AppData\Local\Temp\53f184a7bdf2b67148454207b6eb463cd01f0b4b57ed93f9b7792d1e7672b382.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1828

C:\Windows\syswow64\explorer.exe
"C:\Windows\syswow64\explorer.exe"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:844

C:\Windows\syswow64\svchost.exe
-k netsvcs
3⤵
PID:1160

C:\Windows\syswow64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:860

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:916

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

memory/844-57-0x0000000000000000-mapping.dmp

Download
memory/844-59-0x0000000074AD1000-0x0000000074AD3000-memory.dmp

Filesize
8KB

Download
memory/844-60-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/860-62-0x0000000000000000-mapping.dmp

Download
memory/1160-61-0x0000000000000000-mapping.dmp

Download
memory/1160-64-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/1160-65-0x0000000000080000-0x00000000000A5000-memory.dmp

Filesize
148KB

Download
memory/1828-54-0x0000000075611000-0x0000000075613000-memory.dmp

Filesize
8KB

Download
memory/1828-55-0x0000000001CB0000-0x0000000001CC6000-memory.dmp

Filesize
88KB

Download
memory/1828-56-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download

Analysis

Sharing