3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b

Analysis

max time kernel
125s
max time network
164s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01-10-2022 22:51

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General

Target

3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe
Size

79KB
MD5

6171d28d94405a8c4fb004cf5643da80
SHA1

b647849d43ba3ac82981218854bab56e4dfc49f9
SHA256

3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b
SHA512

ed82a86c78148ebb4b4ff2700bc3178f1980c3c71732186259ec7493ec54363cf1f3d111019ce1b788925ab325c7805895a1355dcdd4ccceafa98780b77e66e6
SSDEEP

1536:bSV8/DcCDCMMkG0DaXJNMSIlkqPgPkvFH9nrH0F83SsJ0eE:bS8BCfoDaXJNMSK99vFHT3E

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1648	NvdUpd.exe

Loads dropped DLL 3 IoCs

pid	Process
904	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe
904	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe
904	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\NvUpdSrv = "C:\\Users\\Admin\\AppData\\Local\\NVIDIA Corporation\\Updates\\NvdUpd.exe"	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 1648	904	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe	27
PID 904 wrote to memory of 1648	904	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe	27
PID 904 wrote to memory of 1648	904	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe	27
PID 904 wrote to memory of 1648	904	3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe	27

C:\Users\Admin\AppData\Local\Temp\3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe
"C:\Users\Admin\AppData\Local\Temp\3ff6fdbcd3e9f0b405978f4690ede2e6a57aefb99e829ca283fb752a7ca5133b.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:904
- C:\Users\Admin\AppData\Local\NVIDIA Corporation\Updates\NvdUpd.exe
  "C:\Users\Admin\AppData\Local\NVIDIA Corporation\Updates\NvdUpd.exe"
  2⤵
  - Executes dropped EXE
  PID:1648

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\NVIDIA Corporation\Updates\NvdUpd.exe

Filesize
53KB

MD5
c25ff1e3515b90808bdeff211e7c4f7f

SHA1
3e302c3bfd727bfe93d63aa001fa349e234c8e0e

SHA256
055867d310fde63826f97ae1d9f05a47cbb06bfb456a900a7a44c5bf40bba05c

SHA512
52cf39a826fec10209908d6c528c4390210578966967d595127bcdbd830c024fa6f1b2e4fdf5634bbcc9430c6816f6154dcc6164c16efa1e3d9125370be8e9d2

Download Submit
\Users\Admin\AppData\Local\NVIDIA Corporation\Updates\NvdUpd.exe

Filesize
53KB

MD5
c25ff1e3515b90808bdeff211e7c4f7f

SHA1
3e302c3bfd727bfe93d63aa001fa349e234c8e0e

SHA256
055867d310fde63826f97ae1d9f05a47cbb06bfb456a900a7a44c5bf40bba05c

SHA512
52cf39a826fec10209908d6c528c4390210578966967d595127bcdbd830c024fa6f1b2e4fdf5634bbcc9430c6816f6154dcc6164c16efa1e3d9125370be8e9d2

Download Submit
\Users\Admin\AppData\Local\NVIDIA Corporation\Updates\NvdUpd.exe

Filesize
53KB

MD5
c25ff1e3515b90808bdeff211e7c4f7f

SHA1
3e302c3bfd727bfe93d63aa001fa349e234c8e0e

SHA256
055867d310fde63826f97ae1d9f05a47cbb06bfb456a900a7a44c5bf40bba05c

SHA512
52cf39a826fec10209908d6c528c4390210578966967d595127bcdbd830c024fa6f1b2e4fdf5634bbcc9430c6816f6154dcc6164c16efa1e3d9125370be8e9d2

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5E59.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
memory/904-54-0x0000000075661000-0x0000000075663000-memory.dmp

Filesize
8KB

Download
memory/1648-58-0x0000000000000000-mapping.dmp

Download
memory/1648-60-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1648-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download