b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 07:47

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General

Target

b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe
Size

314KB
MD5

b07572736c4d139446e6b6b2cc6d4188
SHA1

0d6da9c380847ac3eaa8ffa386d50ffe40b8de7b
SHA256

b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674
SHA512

3ef2fa139036e2cb98b9b1d52946fbf1526d49dfe51f3ab6523cf44444ee8fb71d2755065c3e16059540ff3ddb48767c8cabc35680e2957e963be2b178d13bc3
SSDEEP

6144:YrAbUzkuvcBYC47l2xn88NEymFTYO67qzVxzRRwy:Yr1kuveY35YO67Wxz7wy

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 3 IoCs

Processes:

b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe

pid	process
2648	b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe
2648	b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe
2648	b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe
Key value enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe

pid	process
2648	b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe
2648	b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe

C:\Users\Admin\AppData\Local\Temp\b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe
"C:\Users\Admin\AppData\Local\Temp\b71f558e707dc76b7f3a87eef6da35fd8a43ab71f27b01919206c0700873e674.exe"
1⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
PID:2648

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\TsuBB40B2B4.dll

Filesize
269KB

MD5
af7ce801c8471c5cd19b366333c153c4

SHA1
4267749d020a362edbd25434ad65f98b073581f1

SHA256
cf7e00ba429bc9f27ccfacc49ae367054f40ada6cede9f513cc29a24e88bf49e

SHA512
88655bd940e9b540c4df551fe68135793eceed03f94389b0654637a18b252bf4d3ef73b0c49548b5fa6ba2cf6d9aff79335c4ebcc0b668e008bcc62c40d2a73c

Download Submit
C:\Users\Admin\AppData\Local\Temp\{A6BD8CFF-A6B5-4792-A579-EE977D5EAE09}\Custom.dll

Filesize
91KB

MD5
71ffb31fe40a3f10913982ee89fa764c

SHA1
c17fa19479a7559f666a30d2932a2b9d540bd0ee

SHA256
b0e3f473796f639cab1354971740405bc39a096839ac53b4dfaae2c4acb71599

SHA512
6913a278fa38b9cef7b317ed7eab7773447dbc786d60531455c5cb28d82c677b472f2c50b3b9e1a8a71290757f064c828721633fb5f7bef47897dc740b1567ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\{A6BD8CFF-A6B5-4792-A579-EE977D5EAE09}\_Setup.dll

Filesize
170KB

MD5
449e327ad7b62d3a446b1d5c97c76dea

SHA1
834bfc7bef4a08ddf4dfaf0e1a1f424b66456903

SHA256
2d0f7824d781e1372ea5a931dc5aba9a76164adfbf95d0a50a785403bc0a2e2f

SHA512
f99fbd4d5e2084a91fc21a2467a447350b14a61940c30482f67c28877863693c41f9e928a39752e7fecffc8bfba609b887ddaa5bbd70e1fec18483bf1e85e986

Download Submit