d798fdc5f093af2d4ad2d3a663e3b4f3f8c9d23c58c4493238bd598375308162

General

Target

Processing.Pdf____________________________________________________________.exe
Size

478KB
MD5

e46421290522060e95dc6c6ac9bab9c8
SHA1

08aaa1203dca088e366ea31253ec264ca710f015
SHA256

c7715cabaa44e33a7e60bc3599924d77e0021383d2f6b1b0ecd5e84bcbfb62c2
SHA512

d590f467b8ebcc8805d910506585033c29c6f3f47b232cf2ebbfea91bf139e135b197ecd8a599521b25cf45fa0e46932e992842651ffe4d0c71b9c2d866369a5
SSDEEP

6144:/ipL4qsxpzEeqcQL3dOk+yrctZl/nS0JSAS2cu1PfFjHNNj9iL:/6UZbzH2Ok+HbrJSycwl/j90

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\vjepipyt = "C:\\Windows\\ogzhyhud.exe"	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

Processing.Pdf____________________________________________________________.exe

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

Processing.Pdf____________________________________________________________.exeProcessing.Pdf____________________________________________________________.exe

description	pid	process	target process
PID 1340 set thread context of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 968 set thread context of 580	968	Processing.Pdf____________________________________________________________.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

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

1872 vssadmin.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Processing.Pdf____________________________________________________________.exe

pid process

1340 Processing.Pdf____________________________________________________________.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 552 vssvc.exe
Token: SeRestorePrivilege 552 vssvc.exe
Token: SeAuditPrivilege 552 vssvc.exe

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

pid	process
1872	vssadmin.exe

pid	process
1340	Processing.Pdf____________________________________________________________.exe

description	pid	process
Token: SeBackupPrivilege	552	vssvc.exe
Token: SeRestorePrivilege	552	vssvc.exe
Token: SeAuditPrivilege	552	vssvc.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

Processing.Pdf____________________________________________________________.exeProcessing.Pdf____________________________________________________________.exeexplorer.exe

description	pid	process	target process
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 1340 wrote to memory of 968	1340	Processing.Pdf____________________________________________________________.exe	Processing.Pdf____________________________________________________________.exe
PID 968 wrote to memory of 580	968	Processing.Pdf____________________________________________________________.exe	explorer.exe
PID 968 wrote to memory of 580	968	Processing.Pdf____________________________________________________________.exe	explorer.exe
PID 968 wrote to memory of 580	968	Processing.Pdf____________________________________________________________.exe	explorer.exe
PID 968 wrote to memory of 580	968	Processing.Pdf____________________________________________________________.exe	explorer.exe
PID 968 wrote to memory of 580	968	Processing.Pdf____________________________________________________________.exe	explorer.exe
PID 580 wrote to memory of 1872	580	explorer.exe	vssadmin.exe
PID 580 wrote to memory of 1872	580	explorer.exe	vssadmin.exe
PID 580 wrote to memory of 1872	580	explorer.exe	vssadmin.exe
PID 580 wrote to memory of 1872	580	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\Processing.Pdf____________________________________________________________.exe
"C:\Users\Admin\AppData\Local\Temp\Processing.Pdf____________________________________________________________.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1340

C:\Users\Admin\AppData\Local\Temp\Processing.Pdf____________________________________________________________.exe
"C:\Users\Admin\AppData\Local\Temp\Processing.Pdf____________________________________________________________.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:968

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\system32\explorer.exe"
3⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:580

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1872

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:552

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

1

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\itepoqipifegakiz\01000000
Filesize
478KB

MD5
92413f283a0c5634aa408bd17062c92b

SHA1
7a358e96a0594e0d191c06244c066ea8fb0718e5

SHA256
ebf4bfb89c451d178586a0d2961071e76661a8eae0758e6ba8c764ab47f85298

SHA512
20176a82a36a0bb724d9b85a5dd9128aa36d36f32e7feb33d298b1e256fbb7dedb6252cf6528875c4d4c1ca86cc0338168e112ea3dcdeeadd627c3343a5bfc81

Download Submit
memory/580-70-0x00000000000D0000-0x000000000010C000-memory.dmp

Filesize
240KB

Download
memory/580-81-0x0000000072DB1000-0x0000000072DB3000-memory.dmp

Filesize
8KB

Download
memory/580-79-0x00000000000D0000-0x000000000010C000-memory.dmp

Filesize
240KB

Download
memory/580-76-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/580-74-0x00000000000EA9D0-mapping.dmp

Download
memory/580-72-0x00000000000D0000-0x000000000010C000-memory.dmp

Filesize
240KB

Download
memory/968-69-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-66-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-68-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-65-0x000000000040B283-mapping.dmp

Download
memory/968-64-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-62-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-61-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-78-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-60-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-58-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/968-55-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/1340-54-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/1872-80-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads