zeppelin | 56871e1fe3b6af154aadd2ab300f0bfc031aea4fab992dbaec57057459a0d754

Analysis

max time kernel
24s
max time network
24s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/10/2022, 14:07

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General

Target

1.exe
Size

211KB
MD5

298dcc1285045bc397ef95ec583901da
SHA1

0b983d8948b282a76bece44d61e9ac73f10cfd31
SHA256

56871e1fe3b6af154aadd2ab300f0bfc031aea4fab992dbaec57057459a0d754
SHA512

ef296ab179f5578d51ccbbe6b9194e1bd3fd46affa3a14be955e15994b6e902c01b467a962eb0d3548fe510f16c77c73d87bece92b15bc6f89c3e2dd4ffea94a
SSDEEP

6144:gia1gMHOPDWIhID8X/4DQFu/U3buRKlemZ9DnGAetTsB+U+:gIMH06cID84DQFu/U3buRKlemZ9DnGAI

Score

10^/10

zeppelin persistence ransomware

Malware Config

Signatures

Detects Zeppelin payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000c000000022f42-133.dat	family_zeppelin
behavioral2/files/0x000c000000022f42-134.dat	family_zeppelin

Zeppelin Ransomware
Ransomware-as-a-service (RaaS) written in Delphi and first seen in 2019.
ransomware zeppelin

Executes dropped EXE 1 IoCs

pid	Process
3976	smss.exe

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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	1.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\smss.exe\" -start"	1.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2156	3976	WerFault.exe	77

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	1.exe
Token: SeDebugPrivilege	1996	1.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 3976	1996	1.exe	77
PID 1996 wrote to memory of 3976	1996	1.exe	77
PID 1996 wrote to memory of 3976	1996	1.exe	77
PID 1996 wrote to memory of 4212	1996	1.exe	78
PID 1996 wrote to memory of 4212	1996	1.exe	78
PID 1996 wrote to memory of 4212	1996	1.exe	78
PID 1996 wrote to memory of 4212	1996	1.exe	78
PID 1996 wrote to memory of 4212	1996	1.exe	78
PID 1996 wrote to memory of 4212	1996	1.exe	78

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\smss.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\smss.exe" -start
  2⤵
  - Executes dropped EXE
  PID:3976
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 668
    3⤵
    - Program crash
    PID:2156
- C:\Windows\SysWOW64\notepad.exe
  notepad.exe
  2⤵
  PID:4212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3976 -ip 3976
1⤵
PID:4272

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\smss.exe

Filesize
211KB

MD5
298dcc1285045bc397ef95ec583901da

SHA1
0b983d8948b282a76bece44d61e9ac73f10cfd31

SHA256
56871e1fe3b6af154aadd2ab300f0bfc031aea4fab992dbaec57057459a0d754

SHA512
ef296ab179f5578d51ccbbe6b9194e1bd3fd46affa3a14be955e15994b6e902c01b467a962eb0d3548fe510f16c77c73d87bece92b15bc6f89c3e2dd4ffea94a

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\smss.exe

Filesize
211KB

MD5
298dcc1285045bc397ef95ec583901da

SHA1
0b983d8948b282a76bece44d61e9ac73f10cfd31

SHA256
56871e1fe3b6af154aadd2ab300f0bfc031aea4fab992dbaec57057459a0d754

SHA512
ef296ab179f5578d51ccbbe6b9194e1bd3fd46affa3a14be955e15994b6e902c01b467a962eb0d3548fe510f16c77c73d87bece92b15bc6f89c3e2dd4ffea94a

Download Submit