b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 07:49

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General

Target

b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe
Size

327KB
MD5

bd1cb2e6a5d7d93925c62a128dcf6a1f
SHA1

21bc5e7e62075bdce89c91d35925e4df93bdd69e
SHA256

b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583
SHA512

bd9d472f9e577fa125e4520acdcb27052138e8a2a42da6b8bda842fe3840131ff56913df74ef0257d6283e87a14130a73cc3a5044235370b6f43f411c23bbb6c
SSDEEP

6144:Br4f9uEo2S1YnQmCX492DkwNP3qpYFAvZm2iODkqdNho9a8eua1BQ9GXk4HVqW+:Br4Vu6/eIo41Zm2qo8UckXDVqW+

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 3 IoCs

Processes:

b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe

pid	process
4344	b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe
4344	b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe
4344	b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.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:

b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe
Key value enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum	b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe

pid	process
4344	b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe
4344	b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe

C:\Users\Admin\AppData\Local\Temp\b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe
"C:\Users\Admin\AppData\Local\Temp\b4b1d00f83bf8e8852fb95e2bfbe40be3b03553cfe5dacd0289dd20a8d7b8583.exe"
1⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
PID:4344

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

C:\Users\Admin\AppData\Local\Temp\Tsu62F0AB3C.dll

Filesize
269KB

MD5
af7ce801c8471c5cd19b366333c153c4

SHA1
4267749d020a362edbd25434ad65f98b073581f1

SHA256
cf7e00ba429bc9f27ccfacc49ae367054f40ada6cede9f513cc29a24e88bf49e

SHA512
88655bd940e9b540c4df551fe68135793eceed03f94389b0654637a18b252bf4d3ef73b0c49548b5fa6ba2cf6d9aff79335c4ebcc0b668e008bcc62c40d2a73c

Download Submit
C:\Users\Admin\AppData\Local\Temp\{60F1AA88-08E3-4F88-AD63-40C1BB12887E}\Custom.dll

Filesize
91KB

MD5
d4aa9b74477f27248e5698b1e6936544

SHA1
033e6d9e0317f18177436e4f436e9911733933d6

SHA256
3867a7cdba893eaece640d5dd17a3dd759af94cd5a0924b849ec4db82d020190

SHA512
e88af1bdefd7d42400d5efc5169a39c23d27bf29383952d3275752f0250ab0e206053229f431969bcc01c4019cd5e5eb9a6572aad53bad25809f2f026e93c290

Download Submit
C:\Users\Admin\AppData\Local\Temp\{60F1AA88-08E3-4F88-AD63-40C1BB12887E}\_Setup.dll

Filesize
179KB

MD5
35b1d5b099a7bccc1b38e0ca0ef5c47a

SHA1
3667c7290097cec828bd8e45c14a36b853c61ad2

SHA256
e03a8c9448bd7416f8fd2a5c306708e29972e4c0d6751d5c1dda68d7d0d2550b

SHA512
9c64d17cc6cf361422d2b2f6a9306138e51b9e1b71a6475cc06a67300e9897ee1d03cb6120f966a168003a54f64a0562aa8fd3566e0e66f01906cb31d7297a0f

Download Submit