16bd53faca8c7993da417cee86d52ec1d8df5d876b18134fab008ab11e67ed1c

Analysis

max time kernel
139s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2024 07:33

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General

Target

79a4be9c06f2d6acd0f24adde9488037.exe
Size

159KB
MD5

79a4be9c06f2d6acd0f24adde9488037
SHA1

2aae36bfcd5106e3b283e1bf567afb8de961a2de
SHA256

16bd53faca8c7993da417cee86d52ec1d8df5d876b18134fab008ab11e67ed1c
SHA512

bb53f0183e1519d99b244bbc0954cb8301c52e451b7eb425b59b2db25d9fe1eaec1c9e618b7bb356e23de8fda3d64a572c229ecf5770d4ff269a85725de445ed
SSDEEP

3072:v22ihA0m3BJf0AeUoNnC70froVkPl4ggueUNwCZVnqEXnjvp+9:gA0m3T0AeNC70DoVkngudxnqIzpA

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1996	biclient.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1996	biclient.exe
1996	biclient.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 1996	2460	79a4be9c06f2d6acd0f24adde9488037.exe	88
PID 2460 wrote to memory of 1996	2460	79a4be9c06f2d6acd0f24adde9488037.exe	88
PID 2460 wrote to memory of 1996	2460	79a4be9c06f2d6acd0f24adde9488037.exe	88

C:\Users\Admin\AppData\Local\Temp\79a4be9c06f2d6acd0f24adde9488037.exe
"C:\Users\Admin\AppData\Local\Temp\79a4be9c06f2d6acd0f24adde9488037.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Local\Temp\biclient.exe
  "C:\Users\Admin\AppData\Local\Temp\biclient.exe" /initurl http://bi.bisrv.com/:affid:/:sid:/:uid:? /affid "ffonts" /id "rudiment" /name "Rudiment" /uniqid 79a4be9c06f2d6acd0f24adde9488037
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Temp\biclient.exe

Filesize
219KB

MD5
c66293ccd7cbe84b1b8f393ca5e4e6d7

SHA1
c24089d407e6280b79bec86532e9de0118e4de71

SHA256
ffbae29e2f233767fd42909720497165ce3552427ef93efb2fc714fb4204755f

SHA512
7ff97aa71f182035f90ba10c3bf8087280e3f34bf717bda139d642f4e043c64aa2b98d82a90a32f1df4b76f9d7610af62390fe934e514c90c703381a421c00b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\config.ini

Filesize
79B

MD5
94382c9eb2a230a2d1decc02f145474d

SHA1
897c93ad5908cc13d9d8a7afa12b4be5d376de56

SHA256
6e5fae72462f715535bebca2278606bdc8195193cb65a025376599e79b7a881f

SHA512
77f3cc27dbd8c818846b358e0ecc0c78a98aaa24033fb3af2c0e5e91ccef13ed8e6e1b0bf49fd8d262a79d0bc451066179ead138d7e3662d3254a313b7d07aea

Download Submit
memory/1996-14-0x0000000001480000-0x0000000001481000-memory.dmp

Filesize
4KB

Download
memory/1996-75-0x0000000001480000-0x0000000001481000-memory.dmp

Filesize
4KB

Download
memory/2460-13-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download