ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5

General

Target

ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
Size

554KB
MD5

5d5a21b34a60312dd1b185c7c3ccc8ac
SHA1

bf9d372b7dc50807b9dddc69aa1c3d4c36d91ed3
SHA256

ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5
SHA512

d423e47189df4c837b4e28315bed2a7ece63b985f995db829dd0fff8e3ea76ecda5d08265b1aa1f91c6566905ad632f461a2076c92db2affb7be1204af57e83b

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\aqahisum = "\"C:\\Windows\\advsuryf.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exeada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe

description	pid	process	target process
PID 1516 set thread context of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 288 set thread context of 968	288	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

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

1956 vssadmin.exe

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

pid	process
1956	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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe

pid process

1516 ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 580 vssvc.exe
Token: SeRestorePrivilege 580 vssvc.exe
Token: SeAuditPrivilege 580 vssvc.exe

pid	process
1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe

description	pid	process
Token: SeBackupPrivilege	580	vssvc.exe
Token: SeRestorePrivilege	580	vssvc.exe
Token: SeAuditPrivilege	580	vssvc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exeada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exeexplorer.exe

description	pid	process	target process
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 1516 wrote to memory of 288	1516	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
PID 288 wrote to memory of 968	288	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	explorer.exe
PID 288 wrote to memory of 968	288	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	explorer.exe
PID 288 wrote to memory of 968	288	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	explorer.exe
PID 288 wrote to memory of 968	288	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	explorer.exe
PID 288 wrote to memory of 968	288	ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe	explorer.exe
PID 968 wrote to memory of 1956	968	explorer.exe	vssadmin.exe
PID 968 wrote to memory of 1956	968	explorer.exe	vssadmin.exe
PID 968 wrote to memory of 1956	968	explorer.exe	vssadmin.exe
PID 968 wrote to memory of 1956	968	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
"C:\Users\Admin\AppData\Local\Temp\ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1516

C:\Users\Admin\AppData\Local\Temp\ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe
"C:\Users\Admin\AppData\Local\Temp\ada5bc7937720a985b47a2e1ec53034b0f6d37ea0d5c01d551d871980804bce5.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:288

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:968

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1956

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\ProgramData\ywynugoxasijikec\01000000
Filesize
554KB

MD5
f84960df38ee56c00c78e2a17c1852de

SHA1
76ed4eea76bfc1f98520832065aa14cdffc60cb7

SHA256
2ad86f451e6ac3cce46536a987238e5888fb0243e868ee78e65708185547e69a

SHA512
049f4a7c3b00963148a79d4c6b06ebf2d39b6d29e77c7e4f5b6671cc224da4a78be98c7e0bc70c30545822e944f07cd2a2de2701304dc966bbe356a1953660fb

Download Submit
memory/288-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/288-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/288-68-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/288-58-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/288-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/288-65-0x000000000040A61E-mapping.dmp

Download
memory/288-66-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/288-77-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/288-61-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/288-55-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/968-80-0x00000000722A1000-0x00000000722A3000-memory.dmp

Filesize
8KB

Download
memory/968-73-0x000000000009A160-mapping.dmp

Download
memory/968-75-0x00000000746F1000-0x00000000746F3000-memory.dmp

Filesize
8KB

Download
memory/968-71-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/968-78-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/968-69-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/1516-54-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1956-79-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads