8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e

General

Target

8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
Size

765KB
MD5

54a6d762039fd77d11669ca5ee10f56f
SHA1

3f2b17cbe9a5291d8f14f9359113bf7f59ea13ba
SHA256

8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e
SHA512

44fe379e68cdbac584d33589859ca65791640e1a013dbc92bb770ede63f95841ddb2e76f7616f2736417c8b8ad040ce3cebbd669882a7e88a1e1c09d65f789de
SSDEEP

12288:oV+pDu9YrDQKiXEfiVzhY1Iys0P9ck4gete0bKSctHSoHvVn6eVijzFME4fmUReH:oI0sDNiUfiPgI91k4geY2F2HSoHvB6cs

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ysoteddt = "\"C:\\Windows\\wcitotaf.exe\""	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe

description	pid	process	target process
PID 2020 set thread context of 1352	2020	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
PID 1352 set thread context of 1076	1352	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

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

1748 vssadmin.exe

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

pid	process
1748	vssadmin.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1328 vssvc.exe
Token: SeRestorePrivilege 1328 vssvc.exe
Token: SeAuditPrivilege 1328 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	1328	vssvc.exe
Token: SeRestorePrivilege	1328	vssvc.exe
Token: SeAuditPrivilege	1328	vssvc.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exeexplorer.exe

description	pid	process	target process
PID 2020 wrote to memory of 1352	2020	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
PID 2020 wrote to memory of 1352	2020	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
PID 2020 wrote to memory of 1352	2020	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
PID 2020 wrote to memory of 1352	2020	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
PID 2020 wrote to memory of 1352	2020	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
PID 2020 wrote to memory of 1352	2020	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
PID 1352 wrote to memory of 1076	1352	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	explorer.exe
PID 1352 wrote to memory of 1076	1352	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	explorer.exe
PID 1352 wrote to memory of 1076	1352	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	explorer.exe
PID 1352 wrote to memory of 1076	1352	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	explorer.exe
PID 1352 wrote to memory of 1076	1352	8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe	explorer.exe
PID 1076 wrote to memory of 1748	1076	explorer.exe	vssadmin.exe
PID 1076 wrote to memory of 1748	1076	explorer.exe	vssadmin.exe
PID 1076 wrote to memory of 1748	1076	explorer.exe	vssadmin.exe
PID 1076 wrote to memory of 1748	1076	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
"C:\Users\Admin\AppData\Local\Temp\8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2020

C:\Users\Admin\AppData\Local\Temp\8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe
"C:\Users\Admin\AppData\Local\Temp\8afc51fb904b25124bd5cb41985e917333071d1af1c6ab83cc7ae408e7cb0e7e.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1352

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:1076

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1748

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1328

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\adyxihodaryrujum\01000000
Filesize
765KB

MD5
91525b962942332f4b8612a8e3677966

SHA1
a14146585e5047260001a2ccc422851e9fa366c8

SHA256
296d2de81b7c1fc74c2cbf3627041b4b67bec056e899283c76e2d07cf76bb518

SHA512
3b0749c32238d98e9306fa2fdcc6193ecaa08fbc7cfee3b1d5835717a11fe9043c1133eb290f78f782fd1f1f57fba1fe1b3c925309be7ed9bba9a0bc2e79abb3

Download Submit
memory/1076-67-0x00000000000DA540-mapping.dmp

Download
memory/1076-76-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/1076-75-0x0000000072551000-0x0000000072553000-memory.dmp

Filesize
8KB

Download
memory/1076-73-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/1076-70-0x00000000749D1000-0x00000000749D3000-memory.dmp

Filesize
8KB

Download
memory/1076-63-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/1076-65-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/1352-60-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1352-69-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1352-62-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1352-72-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1352-59-0x000000000040AD0A-mapping.dmp

Download
memory/1352-56-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1748-74-0x0000000000000000-mapping.dmp

Download
memory/2020-54-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/2020-55-0x0000000000250000-0x0000000000258000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads