zloader | 76f4db4f373809a4dba455b3370a049295e711f635fa4c070790e1cb907e31a6

Resubmissions

03-08-2023 07:52

230803-jqkwdsca99 10

27-07-2023 11:24

26-12-2022 13:39

26-12-2022 13:39

26-12-2022 13:38

26-12-2022 13:38

Analysis

max time kernel
110s
max time network
97s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
26-12-2022 13:38

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General

Target

e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8.dll
Size

111KB
MD5

e3564138588cba04c873bd054458f8b9
SHA1

157ec7421e1333b714d01a750b6d5d6517a92c45
SHA256

e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8
SHA512

2a2e8ce45a928bcffdb40ebf6559c1f071bb3feccfd9cfe355e593acb559ecf84858cf4474708d311317ab08b3f981eba7c8b80dceae973839a0eec9049665c8
SSDEEP

1536:3ui/9Xb791Wff4K84oeRnobxxm2ShclQaLMin8F5vAC+WEQbAmTjTpeyv0+gPzff:H/J7jWHT/oegcaQF5XEgHbpeyvfgT

Score

10^/10

zloader dllobnova 1017 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

DLLobnova

Campaign

1017

https://fdsjfjdsfjdsjfdjsfh.com/gate.php

https://fdsjfjdsfjdsdsjajjs.com/gate.php

https://idisaudhasdhasdj.com/gate.php

https://dsjdjsjdsadhasdas.com/gate.php

https://dsdjfhdsufudhjas.com/gate.php

https://dsdjfhdsufudhjas.info/gate.php

https://fdsjfjdsfjdsdsjajjs.info/gate.php

https://idisaudhasdhasdj.info/gate.php

Attributes

build_id
28

rc4.plain

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader
Blocklisted process makes network request 8 IoCs

Processes:

msiexec.exe

flow pid process

5 1400 msiexec.exe
7 1400 msiexec.exe
9 1400 msiexec.exe
11 1400 msiexec.exe
13 1400 msiexec.exe
15 1400 msiexec.exe
17 1400 msiexec.exe
20 1400 msiexec.exe

flow	pid	process
5	1400	msiexec.exe
7	1400	msiexec.exe
9	1400	msiexec.exe
11	1400	msiexec.exe
13	1400	msiexec.exe
15	1400	msiexec.exe
17	1400	msiexec.exe
20	1400	msiexec.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ehgud = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Fuycfo\\foceu.dll,DllRegisterServer"	msiexec.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 1664 set thread context of 1400 1664 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1400 msiexec.exe
Token: SeSecurityPrivilege 1400 msiexec.exe

description	pid	process	target process
PID 1664 set thread context of 1400	1664	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	1400	msiexec.exe
Token: SeSecurityPrivilege	1400	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 1504 wrote to memory of 1664	1504	regsvr32.exe	regsvr32.exe
PID 1504 wrote to memory of 1664	1504	regsvr32.exe	regsvr32.exe
PID 1504 wrote to memory of 1664	1504	regsvr32.exe	regsvr32.exe
PID 1504 wrote to memory of 1664	1504	regsvr32.exe	regsvr32.exe
PID 1504 wrote to memory of 1664	1504	regsvr32.exe	regsvr32.exe
PID 1504 wrote to memory of 1664	1504	regsvr32.exe	regsvr32.exe
PID 1504 wrote to memory of 1664	1504	regsvr32.exe	regsvr32.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe
PID 1664 wrote to memory of 1400	1664	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1504

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1664

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1400

Network

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1400-57-0x0000000000090000-0x00000000000B1000-memory.dmp

Filesize
132KB

Download
memory/1400-59-0x0000000000090000-0x00000000000B1000-memory.dmp

Filesize
132KB

Download
memory/1400-60-0x0000000000000000-mapping.dmp

Download
memory/1400-62-0x0000000000090000-0x00000000000B1000-memory.dmp

Filesize
132KB

Download
memory/1400-63-0x0000000000090000-0x00000000000B1000-memory.dmp

Filesize
132KB

Download
memory/1504-54-0x000007FEFBCE1000-0x000007FEFBCE3000-memory.dmp

Filesize
8KB

Download
memory/1664-55-0x0000000000000000-mapping.dmp

Download
memory/1664-56-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download