183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2

Analysis

max time kernel
233s
max time network
332s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
28/11/2022, 00:23

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General

Target

183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe
Size

24KB
MD5

a5dd80904526960432352058b3c45c66
SHA1

40ddc852ca5802c226d128f1a6cb344d7da4b102
SHA256

183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2
SHA512

b2508e5d2839d77b3998b9604170afb95dae5172a4ed884003b60b7e8a48b97034184d085eb71f53ec9225f975ed19800f380e0e3024236f76d2111d6cb18ba3
SSDEEP

384:dhROse5Lh2WKA7pqzmnOTiSsS/iWd6Nxvz0IzjdQFZLnqa:dhROseBh1KuYsmfgdzTGTq

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1536	dolvki.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/700-55-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/files/0x000b0000000122f2-56.dat	upx
behavioral1/memory/1536-58-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/1536-60-0x0000000000400000-0x0000000000412000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
832	cmd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\dolvki.exe	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe
File opened for modification	C:\Windows\dolvki.exe	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	700	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 700 wrote to memory of 832	700	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe	29
PID 700 wrote to memory of 832	700	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe	29
PID 700 wrote to memory of 832	700	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe	29
PID 700 wrote to memory of 832	700	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe	29

C:\Users\Admin\AppData\Local\Temp\183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe
"C:\Users\Admin\AppData\Local\Temp\183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\183679~1.EXE > nul
  2⤵
  - Deletes itself
  PID:832

C:\Windows\dolvki.exe
C:\Windows\dolvki.exe
1⤵
- Executes dropped EXE
PID:1536

Network

MITRE ATT&CK Enterprise v6

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:\Windows\dolvki.exe

Filesize
24KB

MD5
a5dd80904526960432352058b3c45c66

SHA1
40ddc852ca5802c226d128f1a6cb344d7da4b102

SHA256
183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2

SHA512
b2508e5d2839d77b3998b9604170afb95dae5172a4ed884003b60b7e8a48b97034184d085eb71f53ec9225f975ed19800f380e0e3024236f76d2111d6cb18ba3

Download Submit
memory/700-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

Download
memory/700-55-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1536-58-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1536-60-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download