3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba

General

Target

3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
Size

809KB
MD5

4ce038d79655af6937ffe506cdf53a5f
SHA1

b299f3e6794de5c7b1bcb98090ce4c5e2ddbc352
SHA256

3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba
SHA512

879af4836c34e53f76225f2784d683e689c81470d9a5c4608bf0d8eab33914b12b8f0253ab9b2b23dcc9afdf9105041be1b411e8c90ce2e1e374bea8b7d019b3
SSDEEP

12288:CjNTa+fyM4s90RaldjkcXkWZzDfqKonqUL9mXguHlem:WTNPj0IdMWZzDfqKonLL9mnlem

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\egohifir = "\"C:\\Windows\\eqygyvuf.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe

description	pid	process	target process
PID 1076 set thread context of 1356	1076	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
PID 1356 set thread context of 1304	1356	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

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

1320 vssadmin.exe

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

pid	process
1320	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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 860 vssvc.exe
Token: SeRestorePrivilege 860 vssvc.exe
Token: SeAuditPrivilege 860 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	860	vssvc.exe
Token: SeRestorePrivilege	860	vssvc.exe
Token: SeAuditPrivilege	860	vssvc.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exeexplorer.exe

description	pid	process	target process
PID 1076 wrote to memory of 1356	1076	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
PID 1076 wrote to memory of 1356	1076	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
PID 1076 wrote to memory of 1356	1076	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
PID 1076 wrote to memory of 1356	1076	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
PID 1076 wrote to memory of 1356	1076	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
PID 1076 wrote to memory of 1356	1076	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
PID 1356 wrote to memory of 1304	1356	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	explorer.exe
PID 1356 wrote to memory of 1304	1356	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	explorer.exe
PID 1356 wrote to memory of 1304	1356	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	explorer.exe
PID 1356 wrote to memory of 1304	1356	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	explorer.exe
PID 1356 wrote to memory of 1304	1356	3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe	explorer.exe
PID 1304 wrote to memory of 1320	1304	explorer.exe	vssadmin.exe
PID 1304 wrote to memory of 1320	1304	explorer.exe	vssadmin.exe
PID 1304 wrote to memory of 1320	1304	explorer.exe	vssadmin.exe
PID 1304 wrote to memory of 1320	1304	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
"C:\Users\Admin\AppData\Local\Temp\3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1076

C:\Users\Admin\AppData\Local\Temp\3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe
"C:\Users\Admin\AppData\Local\Temp\3f7454597163393ce8192dde5b77d5c9fe37b3c75bb4aca471a862721003b6ba.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1356

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:1304

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1320

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:860

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\ypevoziqagevidih\01000000
Filesize
809KB

MD5
77b2dc3781f3509d85f61fc3bc9b3866

SHA1
a53e9f8eb374115b986857e5710a39400ea7a92d

SHA256
b84cf94c435c77328084e84e152b80cbd1c60b2a99b2680945aabcfae5845271

SHA512
e828aa3bb506ad00f35ed1e71f5bad11d5ff39613254980f90bd3112ddf45b71153b8c26b34ebf81a03905dd197b18734ef3119efb4886efb99d1debe4b62478

Download Submit
memory/1076-55-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1076-54-0x0000000076AE1000-0x0000000076AE3000-memory.dmp

Filesize
8KB

Download
memory/1304-70-0x00000000752A1000-0x00000000752A3000-memory.dmp

Filesize
8KB

Download
memory/1304-75-0x0000000072E41000-0x0000000072E43000-memory.dmp

Filesize
8KB

Download
memory/1304-73-0x00000000000C0000-0x00000000000FC000-memory.dmp

Filesize
240KB

Download
memory/1304-64-0x00000000000C0000-0x00000000000FC000-memory.dmp

Filesize
240KB

Download
memory/1304-66-0x00000000000C0000-0x00000000000FC000-memory.dmp

Filesize
240KB

Download
memory/1304-68-0x00000000000DA140-mapping.dmp

Download
memory/1320-74-0x0000000000000000-mapping.dmp

Download
memory/1356-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1356-63-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1356-72-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1356-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1356-59-0x000000000040A61E-mapping.dmp

Download
memory/1356-56-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads