51b3773145652b5d559396a08e1282a3a1d92d4df473f774d61791386fca0598

Analysis

max time kernel
149s
max time network
158s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
22/11/2024, 03:27

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General

Target
a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe
Size 212KB
Sample241122-dz7tmazlan
SHA256 a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43
MD5 c697914b3e3c115391e5a32e6d8d3a98
SHA1 b61335cc60ff37680e82c7245ec268d206fc21e2
SHA512 dbdd230a9829eeae3cbb7ba7cead7b378661275ca3a97bef7c4d60a7c8a5a475120bda551c2e2d81e69f9cc4f0dc798f9160d2e94d11f1ed3cc9cdf4752ae35b
SSDEEP 3072:HTS1pU/dvuuCtCxzxXXQu+pbSCu9P+5qd/o1x3wPWnK:HTeu/Zat6gH9un0ePW
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

defense_evasion discovery evasion execution impact persistence ransomware trojan

Malware Config

Signatures

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\edutgguf = "\"C:\\Windows\\hhihedvp.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 3064	3032	a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe	30

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\hhihedvp.exe	explorer.exe
File created	C:\Windows\hhihedvp.exe	explorer.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vssadmin.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
2792	vssadmin.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2572	vssvc.exe
Token: SeRestorePrivilege	2572	vssvc.exe
Token: SeAuditPrivilege	2572	vssvc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 3064	3032	a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe	30
PID 3032 wrote to memory of 3064	3032	a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe	30
PID 3032 wrote to memory of 3064	3032	a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe	30
PID 3032 wrote to memory of 3064	3032	a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe	30
PID 3032 wrote to memory of 3064	3032	a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe	30
PID 3064 wrote to memory of 2792	3064	explorer.exe	31
PID 3064 wrote to memory of 2792	3064	explorer.exe	31
PID 3064 wrote to memory of 2792	3064	explorer.exe	31
PID 3064 wrote to memory of 2792	3064	explorer.exe	31

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe
"C:\Users\Admin\AppData\Local\Temp\a66dde22983583da6d3b1e5b9eb1e8fb019f5157eda508305942292c0d10fa43.exe"
1⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\system32\explorer.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer Phishing Filter
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\vssadmin.exe
    vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - System Location Discovery: System Language Discovery
    - Interacts with shadow copies
    PID:2792

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

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Downloads

01000000

Path C:\ProgramData\abekelataheficij\01000000
Size 212KB
SHA256 67691b9abbfb53e5d4a755077749fccc637219f5d1bef4b248f51c2c89eaa00d
MD5 d6d1c8fbb124b1fb48ebfee6ebbc30cb
SHA1 8aadacd8913e4c51a1a6630335d896cc7d6aea55
SHA512 456433369157acb4b48f4b5fc2c7dd22a4930fb79e70ddc87af30e8708f34d8dbac5690ad649eaa82a3024184b75f4d9e2c1c0497617d7f9def8f57b6b8b577c
SSDEEP 3072:7CTNMwKE9LoowdXYPCb2AxzViIo4n2Pnfi8uOnMuZDX6hJBpc7VKeV3kfY:upMwLoowJ5zmna8Vn7+Jrc5j
MD5 SHA1 SHA512 SSDEEP

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memory/3064-1-0x00000000000D0000-0x0000000000108000-memory.dmp

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memory/3064-4-0x00000000000D0000-0x0000000000108000-memory.dmp

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memory/3064-5-0x00000000000D0000-0x0000000000108000-memory.dmp

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memory/3064-14-0x00000000000D0000-0x0000000000108000-memory.dmp

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memory/3064-10-0x00000000000D0000-0x0000000000108000-memory.dmp

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memory/3064-17-0x00000000000D0000-0x0000000000108000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads