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

Processes:

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

Zeppelin Ransomware
Ransomware-as-a-service (RaaS) written in Delphi and first seen in 2019.
ransomware zeppelin
Executes dropped EXE 1 IoCs

Processes:

smss.exe

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

Processes:

1.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 1.exe

pid	process
3976	smss.exe

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

Processes:

1.exe

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

Processes:

WerFault.exe

pid pid_target process target process

2156 3976 WerFault.exe smss.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1.exe

description pid process

Token: SeDebugPrivilege 1996 1.exe
Token: SeDebugPrivilege 1996 1.exe

pid	pid_target	process	target process
2156	3976	WerFault.exe	smss.exe

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

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1.exe

description	pid	process	target process
PID 1996 wrote to memory of 3976	1996	1.exe	smss.exe
PID 1996 wrote to memory of 3976	1996	1.exe	smss.exe
PID 1996 wrote to memory of 3976	1996	1.exe	smss.exe
PID 1996 wrote to memory of 4212	1996	1.exe	notepad.exe
PID 1996 wrote to memory of 4212	1996	1.exe	notepad.exe
PID 1996 wrote to memory of 4212	1996	1.exe	notepad.exe
PID 1996 wrote to memory of 4212	1996	1.exe	notepad.exe
PID 1996 wrote to memory of 4212	1996	1.exe	notepad.exe
PID 1996 wrote to memory of 4212	1996	1.exe	notepad.exe

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

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

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

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\smss.exe
Filesize
211KB

MD5
298dcc1285045bc397ef95ec583901da

SHA1
0b983d8948b282a76bece44d61e9ac73f10cfd31

SHA256
56871e1fe3b6af154aadd2ab300f0bfc031aea4fab992dbaec57057459a0d754

SHA512
ef296ab179f5578d51ccbbe6b9194e1bd3fd46affa3a14be955e15994b6e902c01b467a962eb0d3548fe510f16c77c73d87bece92b15bc6f89c3e2dd4ffea94a

Download Submit
memory/3976-132-0x0000000000000000-mapping.dmp

Download
memory/4212-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads