183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2

Analysis

max time kernel
146s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-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
3108	jolboo.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000300000002265d-132.dat	upx
behavioral2/files/0x000300000002265d-133.dat	upx
behavioral2/memory/5092-134-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/3108-135-0x0000000000400000-0x0000000000412000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\jolboo.exe	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe
File opened for modification	C:\Windows\jolboo.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	5092	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 4880	5092	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe	86
PID 5092 wrote to memory of 4880	5092	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe	86
PID 5092 wrote to memory of 4880	5092	183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe	86

C:\Users\Admin\AppData\Local\Temp\183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe
"C:\Users\Admin\AppData\Local\Temp\183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\183679~1.EXE > nul
  2⤵
  PID:4880

C:\Windows\jolboo.exe
C:\Windows\jolboo.exe
1⤵
- Executes dropped EXE
PID:3108

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\jolboo.exe

Filesize
24KB

MD5
a5dd80904526960432352058b3c45c66

SHA1
40ddc852ca5802c226d128f1a6cb344d7da4b102

SHA256
183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2

SHA512
b2508e5d2839d77b3998b9604170afb95dae5172a4ed884003b60b7e8a48b97034184d085eb71f53ec9225f975ed19800f380e0e3024236f76d2111d6cb18ba3

Download Submit
C:\Windows\jolboo.exe

Filesize
24KB

MD5
a5dd80904526960432352058b3c45c66

SHA1
40ddc852ca5802c226d128f1a6cb344d7da4b102

SHA256
183679a5cfd6ec01597d861b68db4bf800d771750c4e45fc576e5db69c6abbb2

SHA512
b2508e5d2839d77b3998b9604170afb95dae5172a4ed884003b60b7e8a48b97034184d085eb71f53ec9225f975ed19800f380e0e3024236f76d2111d6cb18ba3

Download Submit
memory/3108-135-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/5092-134-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download