29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1

General

Target

29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
Size

554KB
MD5

0fbcb5b55c5e2fb2b020d5cb7266ee69
SHA1

c4cf2886290641e7c00429c8d866de8eca642de5
SHA256

29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1
SHA512

b986e10ea0a67db49eab5d443de76ba64a1071c5f10e432b4d43c4619d4f63f8316582bc7d5238ef00526019af1d4218424b3b9613e5bf6fbc8f7316e2019654

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\imyviqaz = "\"C:\\Windows\\yqodyxhq.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe

description	pid	process	target process
PID 1552 set thread context of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1620 set thread context of 1272	1620	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

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

2032 vssadmin.exe

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

pid	process
2032	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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe

pid process

1552 29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 760 vssvc.exe
Token: SeRestorePrivilege 760 vssvc.exe
Token: SeAuditPrivilege 760 vssvc.exe

pid	process
1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe

description	pid	process
Token: SeBackupPrivilege	760	vssvc.exe
Token: SeRestorePrivilege	760	vssvc.exe
Token: SeAuditPrivilege	760	vssvc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exeexplorer.exe

description	pid	process	target process
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1552 wrote to memory of 1620	1552	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
PID 1620 wrote to memory of 1272	1620	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	explorer.exe
PID 1620 wrote to memory of 1272	1620	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	explorer.exe
PID 1620 wrote to memory of 1272	1620	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	explorer.exe
PID 1620 wrote to memory of 1272	1620	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	explorer.exe
PID 1620 wrote to memory of 1272	1620	29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe	explorer.exe
PID 1272 wrote to memory of 2032	1272	explorer.exe	vssadmin.exe
PID 1272 wrote to memory of 2032	1272	explorer.exe	vssadmin.exe
PID 1272 wrote to memory of 2032	1272	explorer.exe	vssadmin.exe
PID 1272 wrote to memory of 2032	1272	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
"C:\Users\Admin\AppData\Local\Temp\29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1552

C:\Users\Admin\AppData\Local\Temp\29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe
"C:\Users\Admin\AppData\Local\Temp\29846c5b0359085d68e8dd6c395228e5f17e950619a745b72f2a6835964f4db1.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1620

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:1272

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:2032

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:760

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
d9e4a9ed562cac8174fa1187bed1db0f

SHA1
c49c9c03354a7468fe290b2fe71f4ffd76557e5d

SHA256
b7a9ec87ab607f0c46a866c1ffd418cdd6cc103a29e62f624dd56e58cbaf7989

SHA512
2d8141b5de70147abb5104727ecb29947b039ea6e28ee9d5e46ea75e73bb4a43ad21e2767041be3fafbef7a5b3f24a120da2f110de833b386e2ce9347505fdcf

Download Submit
memory/1272-69-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/1272-80-0x0000000072AB1000-0x0000000072AB3000-memory.dmp

Filesize
8KB

Download
memory/1272-78-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/1272-75-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download
memory/1272-73-0x000000000009A160-mapping.dmp

Download
memory/1272-71-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/1552-54-0x0000000075B61000-0x0000000075B63000-memory.dmp

Filesize
8KB

Download
memory/1620-55-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1620-68-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1620-66-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1620-65-0x000000000040A61E-mapping.dmp

Download
memory/1620-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1620-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1620-77-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1620-58-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1620-61-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1620-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2032-79-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads