025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c

General

Target

025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exe
Size

1.1MB
MD5

a0f0a5939391e1e6435891fcbd3c1f8f
SHA1

240a65e3b2fc037e23b631689bdf2b56089b5ff1
SHA256

025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c
SHA512

e8f8acb13fc39a61e277ec562fb72a3381a6a2b6c912aa17b121010cc04b16b0406f69fafd36029106e6a258155f9a01470af551d63ed8e25dd908960e40030c
SSDEEP

24576:Xo3ciGhHIfz+y/iHemincy/2JIGJZwYKl6cE5CjmXNeEh:XEGZIfzuHeminIN9Q61CjsN9

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

15 1276 rundll32.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1276 rundll32.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1276 set thread context of 3492 1276 rundll32.exe rundll32.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 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4236 1232 WerFault.exe 025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exe

flow	pid	process
15	1276	rundll32.exe

pid	process
1276	rundll32.exe

description	pid	process	target process
PID 1276 set thread context of 3492	1276	rundll32.exe	rundll32.exe

pid	pid_target	process	target process
4236	1232	WerFault.exe	025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exe

Checks processor information in registry 2 TTPs 21 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	rundll32.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Platform Specific Field 1	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Configuration Data	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Previous Update Revision	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Configuration Data	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Revision	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Revision	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\FeatureSet	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

rundll32.exe

pid process

3492 rundll32.exe

pid	process
3492	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exerundll32.exe

description	pid	process	target process
PID 1232 wrote to memory of 1276	1232	025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exe	rundll32.exe
PID 1232 wrote to memory of 1276	1232	025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exe	rundll32.exe
PID 1232 wrote to memory of 1276	1232	025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exe	rundll32.exe
PID 1276 wrote to memory of 3492	1276	rundll32.exe	rundll32.exe
PID 1276 wrote to memory of 3492	1276	rundll32.exe	rundll32.exe
PID 1276 wrote to memory of 3492	1276	rundll32.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exe
"C:\Users\Admin\AppData\Local\Temp\025208b3d2dc191ade69d312f02ae794a9a1b03952e959d7031460aa0100d23c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1232

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Dfuqft.tmp",Dsdupihuqo
2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1276

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 22326
3⤵
- Suspicious use of FindShellTrayWindow
PID:3492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1232 -s 540
2⤵
- Program crash
PID:4236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1232 -ip 1232
1⤵
PID:1228

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Dfuqft.tmp
Filesize
792KB

MD5
9e3ff54c77c7d43bfdf8cff1d31c3c51

SHA1
9681f127f0300093ac15d8a3fc16c289f0b9c045

SHA256
2c683e8b9889636eb8279bdb6cf9181e939021acb2cbbed109b27aab6f47861d

SHA512
d7b6ff58a48ce21250e13ffd1f57f041615e83cfd3fc2627ea0951a32ad8141fbe760765faada136cf3ab31c9165a0ad0f88ef95f35f58735d169046c257fcec

Download Submit
C:\Users\Admin\AppData\Local\Temp\Dfuqft.tmp
Filesize
792KB

MD5
9e3ff54c77c7d43bfdf8cff1d31c3c51

SHA1
9681f127f0300093ac15d8a3fc16c289f0b9c045

SHA256
2c683e8b9889636eb8279bdb6cf9181e939021acb2cbbed109b27aab6f47861d

SHA512
d7b6ff58a48ce21250e13ffd1f57f041615e83cfd3fc2627ea0951a32ad8141fbe760765faada136cf3ab31c9165a0ad0f88ef95f35f58735d169046c257fcec

Download Submit
memory/1232-137-0x0000000000400000-0x0000000000538000-memory.dmp

Filesize
1.2MB

Download
memory/1232-135-0x000000000219A000-0x0000000002286000-memory.dmp

Filesize
944KB

Download
memory/1232-136-0x0000000002290000-0x00000000023C2000-memory.dmp

Filesize
1.2MB

Download
memory/1276-142-0x0000000004A30000-0x0000000004B70000-memory.dmp

Filesize
1.2MB

Download
memory/1276-145-0x0000000004A30000-0x0000000004B70000-memory.dmp

Filesize
1.2MB

Download
memory/1276-139-0x0000000006460000-0x0000000006FB7000-memory.dmp

Filesize
11.3MB

Download
memory/1276-140-0x0000000004A30000-0x0000000004B70000-memory.dmp

Filesize
1.2MB

Download
memory/1276-141-0x0000000004A30000-0x0000000004B70000-memory.dmp

Filesize
1.2MB

Download
memory/1276-132-0x0000000000000000-mapping.dmp

Download
memory/1276-143-0x0000000004A30000-0x0000000004B70000-memory.dmp

Filesize
1.2MB

Download
memory/1276-144-0x0000000004A30000-0x0000000004B70000-memory.dmp

Filesize
1.2MB

Download
memory/1276-152-0x0000000006460000-0x0000000006FB7000-memory.dmp

Filesize
11.3MB

Download
memory/1276-138-0x0000000006460000-0x0000000006FB7000-memory.dmp

Filesize
11.3MB

Download
memory/1276-148-0x0000000004AA9000-0x0000000004AAB000-memory.dmp

Filesize
8KB

Download
memory/3492-149-0x000002571C430000-0x000002571C570000-memory.dmp

Filesize
1.2MB

Download
memory/3492-147-0x000002571C430000-0x000002571C570000-memory.dmp

Filesize
1.2MB

Download
memory/3492-150-0x0000000000630000-0x00000000008DE000-memory.dmp

Filesize
2.7MB

Download
memory/3492-151-0x000002571AB60000-0x000002571AE1F000-memory.dmp

Filesize
2.7MB

Download
memory/3492-146-0x00007FF75C0A6890-mapping.dmp

Download
memory/3492-153-0x000002571AB60000-0x000002571AE1F000-memory.dmp

Filesize
2.7MB

Download

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