b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb

General

Target

b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
Size

554KB
MD5

35ef3d04fc9440361c1d7c075c9aa3f8
SHA1

f4110a2517c36f4af887f4b852d93e755bc18e33
SHA256

b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb
SHA512

662cdaa3c9a26e4c020b6a25f7a5664c51c7e72a91ab8d4ffaa6890efeaba1930318646007e96f818e1323c13dfd66849c07c95cb4cbe3fd4133ad9fbc65572d

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\ejufdfib = "\"C:\\Windows\\iqopogap.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exeb73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe

description	pid	process	target process
PID 904 set thread context of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 1304 set thread context of 1876	1304	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

File opened for modification C:\Windows\iqopogap.exe explorer.exe
File created C:\Windows\iqopogap.exe explorer.exe
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

1960 vssadmin.exe

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

pid	process
1960	vssadmin.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe

pid process

904 b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 584 vssvc.exe
Token: SeRestorePrivilege 584 vssvc.exe
Token: SeAuditPrivilege 584 vssvc.exe

pid	process
904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe

description	pid	process
Token: SeBackupPrivilege	584	vssvc.exe
Token: SeRestorePrivilege	584	vssvc.exe
Token: SeAuditPrivilege	584	vssvc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exeb73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exeexplorer.exe

description	pid	process	target process
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 904 wrote to memory of 1304	904	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
PID 1304 wrote to memory of 1876	1304	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	explorer.exe
PID 1304 wrote to memory of 1876	1304	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	explorer.exe
PID 1304 wrote to memory of 1876	1304	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	explorer.exe
PID 1304 wrote to memory of 1876	1304	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	explorer.exe
PID 1304 wrote to memory of 1876	1304	b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe	explorer.exe
PID 1876 wrote to memory of 1960	1876	explorer.exe	vssadmin.exe
PID 1876 wrote to memory of 1960	1876	explorer.exe	vssadmin.exe
PID 1876 wrote to memory of 1960	1876	explorer.exe	vssadmin.exe
PID 1876 wrote to memory of 1960	1876	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
"C:\Users\Admin\AppData\Local\Temp\b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:904

C:\Users\Admin\AppData\Local\Temp\b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe
"C:\Users\Admin\AppData\Local\Temp\b73ad1034f549ee2133928c81ad1960e3378e21a6ab0c71fbc08ebb21c6681bb.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\system32\explorer.exe"
3⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies Internet Explorer Phishing Filter
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1960

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:584

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

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\ProgramData\ywynugoxasijikec\01000000
Filesize
554KB

MD5
c376d16f040aa85e8eeea6ec38c29579

SHA1
5e40459a80bcc3d71a68e07a6787ebf623289534

SHA256
e280f9cde38af68a80efcfcbfb438d1a8ec23a69650b226ce588657b7e7a67f1

SHA512
200844d432b086e43af880952765f91f9fe6414314616f8f3e8dcde9dd35d7d439867f8ac995f1141be4ea98082cebf422f939b0b99e8816c0de4269d72e2001

Download Submit
memory/904-54-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1304-66-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1304-77-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1304-61-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1304-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1304-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1304-65-0x000000000040A61E-mapping.dmp

Download
memory/1304-58-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1304-68-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1304-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1304-55-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1876-73-0x000000000011A160-mapping.dmp

Download
memory/1876-75-0x0000000074D81000-0x0000000074D83000-memory.dmp

Filesize
8KB

Download
memory/1876-71-0x0000000000100000-0x000000000013C000-memory.dmp

Filesize
240KB

Download
memory/1876-69-0x0000000000100000-0x000000000013C000-memory.dmp

Filesize
240KB

Download
memory/1876-79-0x0000000072931000-0x0000000072933000-memory.dmp

Filesize
8KB

Download
memory/1876-80-0x0000000000100000-0x000000000013C000-memory.dmp

Filesize
240KB

Download
memory/1960-78-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads