77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c

General

Target

77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
Size

1.8MB
MD5

f0735b19049ea3f9fedea91d5cc0c4f5
SHA1

ba0ed610606c05ddba9da100c3d62cbbe72fe216
SHA256

77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c
SHA512

8517c8624ef5754ef446af68f372013763a62f0274252d576ed6545f6d9b82f04e467881a845ede1de5a6eb88bfd28e85d41dc849d13285dd576c384423c8f96
SSDEEP

3072:1+kZqVeInSk82TfatZ9mD5fvNj6kECsjZ:1jaSk8iCtPmD5Hl6ysN

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 4 IoCs

Processes:

winlogon.exewinlogon.exewinlogon.exewinlogon.exe

pid process

2352 winlogon.exe
3140 winlogon.exe
232 winlogon.exe
1560 winlogon.exe

pid	process
2352	winlogon.exe
3140	winlogon.exe
232	winlogon.exe
1560	winlogon.exe

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/3080-134-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3080-136-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3080-137-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3080-140-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3080-145-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3140-150-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3140-151-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3140-154-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3140-158-0x0000000000400000-0x000000000041C000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exewinlogon.exewinlogon.exe

description	pid	process	target process
PID 1516 set thread context of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 2352 set thread context of 3140	2352	winlogon.exe	winlogon.exe
PID 3140 set thread context of 232	3140	winlogon.exe	winlogon.exe
PID 3140 set thread context of 1560	3140	winlogon.exe	winlogon.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1044 232 WerFault.exe winlogon.exe
2348 1560 WerFault.exe winlogon.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exewinlogon.exe

pid process

3080 77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
3140 winlogon.exe

pid	pid_target	process	target process
1044	232	WerFault.exe	winlogon.exe
2348	1560	WerFault.exe	winlogon.exe

pid	process
3080	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
3140	winlogon.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exewinlogon.exewinlogon.exe

description	pid	process	target process
PID 1516 wrote to memory of 4040	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	svchost.exe
PID 1516 wrote to memory of 4040	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	svchost.exe
PID 1516 wrote to memory of 4040	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	svchost.exe
PID 1516 wrote to memory of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 1516 wrote to memory of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 1516 wrote to memory of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 1516 wrote to memory of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 1516 wrote to memory of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 1516 wrote to memory of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 1516 wrote to memory of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 1516 wrote to memory of 3080	1516	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
PID 3080 wrote to memory of 2352	3080	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	winlogon.exe
PID 3080 wrote to memory of 2352	3080	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	winlogon.exe
PID 3080 wrote to memory of 2352	3080	77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe	winlogon.exe
PID 2352 wrote to memory of 2504	2352	winlogon.exe	svchost.exe
PID 2352 wrote to memory of 2504	2352	winlogon.exe	svchost.exe
PID 2352 wrote to memory of 2504	2352	winlogon.exe	svchost.exe
PID 2352 wrote to memory of 3140	2352	winlogon.exe	winlogon.exe
PID 2352 wrote to memory of 3140	2352	winlogon.exe	winlogon.exe
PID 2352 wrote to memory of 3140	2352	winlogon.exe	winlogon.exe
PID 2352 wrote to memory of 3140	2352	winlogon.exe	winlogon.exe
PID 2352 wrote to memory of 3140	2352	winlogon.exe	winlogon.exe
PID 2352 wrote to memory of 3140	2352	winlogon.exe	winlogon.exe
PID 2352 wrote to memory of 3140	2352	winlogon.exe	winlogon.exe
PID 2352 wrote to memory of 3140	2352	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 232	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 232	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 232	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 232	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 232	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 232	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 232	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 232	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 1560	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 1560	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 1560	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 1560	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 1560	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 1560	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 1560	3140	winlogon.exe	winlogon.exe
PID 3140 wrote to memory of 1560	3140	winlogon.exe	winlogon.exe

C:\Users\Admin\AppData\Local\Temp\77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
"C:\Users\Admin\AppData\Local\Temp\77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1516

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\\svchost.exe
2⤵
PID:4040

C:\Users\Admin\AppData\Local\Temp\77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c.exe
2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3080

C:\Users\Admin\E696D64614\winlogon.exe
"C:\Users\Admin\E696D64614\winlogon.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2352

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\\svchost.exe
4⤵
PID:2504

C:\Users\Admin\E696D64614\winlogon.exe
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3140

C:\Users\Admin\E696D64614\winlogon.exe
"C:\Users\Admin\E696D64614\winlogon.exe"
5⤵
- Executes dropped EXE
PID:232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 232 -s 12
6⤵
- Program crash
PID:1044

C:\Users\Admin\E696D64614\winlogon.exe
"C:\Users\Admin\E696D64614\winlogon.exe"
5⤵
- Executes dropped EXE
PID:1560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1560 -s 12
6⤵
- Program crash
PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 232 -ip 232
1⤵
PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1560 -ip 1560
1⤵
PID:2076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.8MB

MD5
f0735b19049ea3f9fedea91d5cc0c4f5

SHA1
ba0ed610606c05ddba9da100c3d62cbbe72fe216

SHA256
77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c

SHA512
8517c8624ef5754ef446af68f372013763a62f0274252d576ed6545f6d9b82f04e467881a845ede1de5a6eb88bfd28e85d41dc849d13285dd576c384423c8f96

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.8MB

MD5
f0735b19049ea3f9fedea91d5cc0c4f5

SHA1
ba0ed610606c05ddba9da100c3d62cbbe72fe216

SHA256
77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c

SHA512
8517c8624ef5754ef446af68f372013763a62f0274252d576ed6545f6d9b82f04e467881a845ede1de5a6eb88bfd28e85d41dc849d13285dd576c384423c8f96

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.8MB

MD5
f0735b19049ea3f9fedea91d5cc0c4f5

SHA1
ba0ed610606c05ddba9da100c3d62cbbe72fe216

SHA256
77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c

SHA512
8517c8624ef5754ef446af68f372013763a62f0274252d576ed6545f6d9b82f04e467881a845ede1de5a6eb88bfd28e85d41dc849d13285dd576c384423c8f96

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.8MB

MD5
f0735b19049ea3f9fedea91d5cc0c4f5

SHA1
ba0ed610606c05ddba9da100c3d62cbbe72fe216

SHA256
77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c

SHA512
8517c8624ef5754ef446af68f372013763a62f0274252d576ed6545f6d9b82f04e467881a845ede1de5a6eb88bfd28e85d41dc849d13285dd576c384423c8f96

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
1.8MB

MD5
f0735b19049ea3f9fedea91d5cc0c4f5

SHA1
ba0ed610606c05ddba9da100c3d62cbbe72fe216

SHA256
77e8c0273519c3e171ca236bb9632e8ce9805ca8709f881dbe04958d77cd911c

SHA512
8517c8624ef5754ef446af68f372013763a62f0274252d576ed6545f6d9b82f04e467881a845ede1de5a6eb88bfd28e85d41dc849d13285dd576c384423c8f96

Download Submit
memory/232-155-0x0000000000000000-mapping.dmp

Download
memory/1560-159-0x0000000000000000-mapping.dmp

Download
memory/2352-141-0x0000000000000000-mapping.dmp

Download
memory/2504-144-0x0000000000000000-mapping.dmp

Download
memory/3080-145-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3080-140-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3080-137-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3080-136-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3080-134-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3080-133-0x0000000000000000-mapping.dmp

Download
memory/3140-146-0x0000000000000000-mapping.dmp

Download
memory/3140-150-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3140-151-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3140-154-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3140-158-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4040-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads