bc4101cb2be2bc8fedb16c82b4c4dc808176f519f9c2c8012c6e18b4b35d932d

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 07:54

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General

Target

$TEMP/uninstall.exe
Size

273KB
MD5

ac49750ef5060156b5dbfcc0b2a63134
SHA1

3c967b82bb4e3d62c0eff4a61d367878e3d911d1
SHA256

4ba9b799b02be4e2ebe6ba8e5354e59884b63217ded0de536053858dea21e553
SHA512

fd51b1641f5f4c3078c1bcc4901c2731d04ef7c222fd0cea9dd19c30f6ce7962c89c8117fb9ff8838bba494e1a9e27e25813ce7d56ae54c9287ae01cbe44caf5
SSDEEP

6144:g50gUCUSINdOHRtKwXPbNsiRlrUEX5eFmM:i0gid6tbPbOiRlrUEX5eFmM

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
852	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
852	Au_.exe

Loads dropped DLL 7 IoCs

pid	Process
2972	uninstall.exe
852	Au_.exe
852	Au_.exe
852	Au_.exe
852	Au_.exe
852	Au_.exe
852	Au_.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
852	Au_.exe
852	Au_.exe
852	Au_.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
852	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 852	2972	uninstall.exe	28
PID 2972 wrote to memory of 852	2972	uninstall.exe	28
PID 2972 wrote to memory of 852	2972	uninstall.exe	28
PID 2972 wrote to memory of 852	2972	uninstall.exe	28
PID 2972 wrote to memory of 852	2972	uninstall.exe	28
PID 2972 wrote to memory of 852	2972	uninstall.exe	28
PID 2972 wrote to memory of 852	2972	uninstall.exe	28

C:\Users\Admin\AppData\Local\Temp\$TEMP\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\uninstall.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\$TEMP\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  PID:852

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\~nsu.tmp\Au_.exe

Filesize
273KB

MD5
ac49750ef5060156b5dbfcc0b2a63134

SHA1
3c967b82bb4e3d62c0eff4a61d367878e3d911d1

SHA256
4ba9b799b02be4e2ebe6ba8e5354e59884b63217ded0de536053858dea21e553

SHA512
fd51b1641f5f4c3078c1bcc4901c2731d04ef7c222fd0cea9dd19c30f6ce7962c89c8117fb9ff8838bba494e1a9e27e25813ce7d56ae54c9287ae01cbe44caf5

Download Submit
\Users\Admin\AppData\Local\Temp\nsy15C3.tmp\FindProcDLL.dll

Filesize
27KB

MD5
6f73b00aef6c49eac62128ef3eca677e

SHA1
1b6aff67d570e5ee61af2376247590eb49b728a1

SHA256
6eb09ce25c7fc62e44dc2f71761c6d60dd4b2d0c7d15e9651980525103aac0a9

SHA512
678fc4bf7d345eeb99a3420ec7d0071eaba302845e93b48527d9a2a9c406709cc44ec74d6a889e25a8351a463803f8713a833df3a1707a5ad50db05240a32938

Download Submit
\Users\Admin\AppData\Local\Temp\nsy15C3.tmp\KillProcDLL.dll

Filesize
4KB

MD5
99f345cf51b6c3c317d20a81acb11012

SHA1
b3d0355f527c536ea14a8ff51741c8739d66f727

SHA256
c2689ba1f66066afce85ca6457ecd36370be0fe351c58422e45efd0948655c93

SHA512
937aa75be84a74f2be3b54dc80fac02c17dad1915d924ef82ab354d2a49bc773ee6d801203c52686113783a7c7ea0e8ed8e673ba696d6d3212f7006e291ed2ef

Download Submit
\Users\Admin\AppData\Local\Temp\nsy15C3.tmp\System.dll

Filesize
11KB

MD5
959ea64598b9a3e494c00e8fa793be7e

SHA1
40f284a3b92c2f04b1038def79579d4b3d066ee0

SHA256
03cd57ab00236c753e7ddeee8ee1c10839ace7c426769982365531042e1f6f8b

SHA512
5e765e090f712beffce40c5264674f430b08719940d66e3a4d4a516fd4ade859f7853f614d9d6bbb602780de54e11110d66dbb0f9ca20ef6096ede531f9f6d64

Download Submit
\Users\Admin\AppData\Local\Temp\nsy15C3.tmp\UserInfo.dll

Filesize
4KB

MD5
d16e06c5de8fb8213a0464568ed9852f

SHA1
d063690dc0d2c824f714acb5c4bcede3aa193f03

SHA256
728472ba312ae8af7f30d758ab473e0772477a68fcd1d2d547dafe6d8800d531

SHA512
60502bb65d91a1a895f38bd0f070738152af58ffa4ac80bac3954aa8aad9fda9666e773988cbd00ce4741d2454bf5f2e0474ce8ea18cfe863ec4c36d09d1e27a

Download Submit
memory/852-23-0x0000000010000000-0x0000000010003000-memory.dmp

Filesize
12KB

Download
memory/852-38-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download