97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765

General

Target

97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
Size

751KB
MD5

e816523edffe416951891844664d86b7
SHA1

70c40d808b31f3ea8d046b40871c2a4b0b8d934f
SHA256

97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765
SHA512

1bebea85411be5c8ee99ebecc000a9f45f87c7ba088dac3467745e9eb27898d38252baa7ee717ee4817a0d38914920dbd65f140e11ebf42c1edaa538a3ff1d2c
SSDEEP

12288:4dp8fcP7cG9CZmSqKd89MP7qIKVmBXQHSo+nTyAZNoZwWjeLj9XJYi39ykB:08qbfwd8WPObVPHSo+nNoZwWjIj9Gi3x

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\acukuvop = "\"C:\\Windows\\yqucomfq.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe

description	pid	process	target process
PID 2044 set thread context of 2000	2044	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
PID 2000 set thread context of 1068	2000	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

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

1892 vssadmin.exe

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

pid	process
1892	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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 968 vssvc.exe
Token: SeRestorePrivilege 968 vssvc.exe
Token: SeAuditPrivilege 968 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	968	vssvc.exe
Token: SeRestorePrivilege	968	vssvc.exe
Token: SeAuditPrivilege	968	vssvc.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exeexplorer.exe

description	pid	process	target process
PID 2044 wrote to memory of 2000	2044	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
PID 2044 wrote to memory of 2000	2044	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
PID 2044 wrote to memory of 2000	2044	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
PID 2044 wrote to memory of 2000	2044	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
PID 2044 wrote to memory of 2000	2044	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
PID 2044 wrote to memory of 2000	2044	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
PID 2000 wrote to memory of 1068	2000	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	explorer.exe
PID 2000 wrote to memory of 1068	2000	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	explorer.exe
PID 2000 wrote to memory of 1068	2000	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	explorer.exe
PID 2000 wrote to memory of 1068	2000	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	explorer.exe
PID 2000 wrote to memory of 1068	2000	97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe	explorer.exe
PID 1068 wrote to memory of 1892	1068	explorer.exe	vssadmin.exe
PID 1068 wrote to memory of 1892	1068	explorer.exe	vssadmin.exe
PID 1068 wrote to memory of 1892	1068	explorer.exe	vssadmin.exe
PID 1068 wrote to memory of 1892	1068	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
"C:\Users\Admin\AppData\Local\Temp\97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2044

C:\Users\Admin\AppData\Local\Temp\97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe
"C:\Users\Admin\AppData\Local\Temp\97f915ea23eb08cb0a18530f30430afc467bb080108d9ea2176112a1f6b82765.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2000

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:1068

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1892

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:968

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\idumewitynofyran\01000000
Filesize
751KB

MD5
ac755bff46c8af3b9e13855e5000568d

SHA1
38fb0cb59db6fec82b8715d4adee7e03c7162d60

SHA256
013b6b7019fd096d335e7f8f3fb31702fdc7247e29276eca42eaf1badbe4eff8

SHA512
229f7133227baac642a8fe6ff0edba5ec001ab309e1ed116e47b293871f343d78f2f29a056998004e69690116e228fda33c3463e93792a500c82e2b621468e3c

Download Submit
memory/1068-66-0x00000000000D0000-0x000000000010C000-memory.dmp

Filesize
240KB

Download
memory/1068-68-0x00000000000EA140-mapping.dmp

Download
memory/1068-75-0x0000000072D41000-0x0000000072D43000-memory.dmp

Filesize
8KB

Download
memory/1068-73-0x00000000000D0000-0x000000000010C000-memory.dmp

Filesize
240KB

Download
memory/1068-70-0x0000000075291000-0x0000000075293000-memory.dmp

Filesize
8KB

Download
memory/1068-64-0x00000000000D0000-0x000000000010C000-memory.dmp

Filesize
240KB

Download
memory/1892-74-0x0000000000000000-mapping.dmp

Download
memory/2000-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2000-56-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2000-63-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2000-72-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2000-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2000-59-0x000000000040A61E-mapping.dmp

Download
memory/2044-55-0x0000000000260000-0x0000000000268000-memory.dmp

Filesize
32KB

Download
memory/2044-54-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads