b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a

Analysis

max time kernel
137s
max time network
157s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 07:50

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General

Target

b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe
Size

312KB
MD5

918ae9b26dc4096f8ccc14bd8efdbb1b
SHA1

5e5ff58b60fdd9c88b822f93b03c31f1da3fe98a
SHA256

b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a
SHA512

1ac6b4f59d954062ed8ba031b641a2860e8243d526b47fc2a1a9a78c24944bf96605334c6884cc1955e2dd23ecae3e67dfb56a551a4ff42f76b5ec0f17700022
SSDEEP

6144:ZrkS9uEo2S1YnQmCX492DkwNP3qpYFK3WSsmbjbqKcs3wP8pXAN7i6T:Zrkau6/eIo43ts7KcXgXAN7ia

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 3 IoCs

Processes:

b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe

pid	process
384	b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe
384	b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe
384	b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.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:

b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe
Key value enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe

pid process

384 b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe

C:\Users\Admin\AppData\Local\Temp\b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe
"C:\Users\Admin\AppData\Local\Temp\b3f39db7f45d2b6c4b3f1d32814fe2ffa63915490d623c63acaedc65e71f1e6a.exe"
1⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
PID:384

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\Tsu4FF19136.dll

Filesize
269KB

MD5
af7ce801c8471c5cd19b366333c153c4

SHA1
4267749d020a362edbd25434ad65f98b073581f1

SHA256
cf7e00ba429bc9f27ccfacc49ae367054f40ada6cede9f513cc29a24e88bf49e

SHA512
88655bd940e9b540c4df551fe68135793eceed03f94389b0654637a18b252bf4d3ef73b0c49548b5fa6ba2cf6d9aff79335c4ebcc0b668e008bcc62c40d2a73c

Download Submit
\Users\Admin\AppData\Local\Temp\{AFD0EFF7-3C51-45C5-A72E-74737433CD01}\Custom.dll

Filesize
91KB

MD5
484f9d098f422e2d83df800e37a078a0

SHA1
0e7b632cb9fa7eadf49d45bd6586a59dc78e879f

SHA256
024301f339a44f4af2fd40a64058803e2fb70afe2807bb004968cb36b260ab60

SHA512
0d7fc20ce1f92774ff1657e573dabb573e8ed522d3a12c973e4741228d1c1afc2c574b94262b562ddae7780ae10c484212191658d80ea1b4ed6cb3a4f9e8a443

Download Submit
\Users\Admin\AppData\Local\Temp\{AFD0EFF7-3C51-45C5-A72E-74737433CD01}\_Setup.dll

Filesize
168KB

MD5
9f8992a651c85604676b2bbf54830547

SHA1
bd2a5cd0038899d97d7c652056c948c33c5bc83d

SHA256
61fef12b10bb745094ec1392da30c357d508c2befafddd354cad9922feca8ed4

SHA512
a6d7692bdbf1a19eb582150d5387faf7d08119f7b111a809c3b55f9de5ee74481b62a1a745f6ed3817ac4c0245ca52e4db8026690ba6a48d3006d47771b60ed7

Download Submit
memory/384-55-0x0000000074E01000-0x0000000074E03000-memory.dmp

Filesize
8KB

Download