zloader | 95a8370c36d81ea596d83892115ce6b90717396c8f657b17696c7eeb2dba1d2e

Target

tim.dll
Size

429KB
MD5

75784d297b3d6fb4d434b6890f6334ab
SHA1

dc945e57be6bdd3cc4894d6cff7dd90a76f6c416
SHA256

95a8370c36d81ea596d83892115ce6b90717396c8f657b17696c7eeb2dba1d2e
SHA512

f54baffc5b545aaa4d939505181466d7b78bb583fd32da6cbf8cea058fca8869e8bf7bf3272f43d09a7b24dc6e821c9aa0e3875dd2959173e704d57568915fa1

Score

10^/10

zloader tim tim botnet persistence suricata trojan

Malware Config

Extracted

Family

zloader

Botnet

tim

Campaign

tim

https://iqowijsdakm.com/gate.php

https://wiewjdmkfjn.com/gate.php

https://dksaoidiakjd.com/gate.php

https://iweuiqjdakjd.com/gate.php

https://yuidskadjna.com/gate.php

https://olksmadnbdj.com/gate.php

https://odsakmdfnbs.com/gate.php

https://odsakjmdnhsaj.com/gate.php

https://odjdnhsaj.com/gate.php

https://odoishsaj.com/gate.php

rc4.plain

rsa_pubkey.plain

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader
suricata: ET MALWARE Generic -POST To gate.php w/Extended ASCII Characters (Likely Zeus Derivative)
suricata: ET MALWARE Generic -POST To gate.php w/Extended ASCII Characters (Likely Zeus Derivative)
suricata
suricata: ET MALWARE Observed ZLoader CnC Domain in SNI
suricata: ET MALWARE Observed ZLoader CnC Domain in SNI
suricata
suricata: ET MALWARE Possible Compromised Host AnubisNetworks Sinkhole Cookie Value Snkz
suricata: ET MALWARE Possible Compromised Host AnubisNetworks Sinkhole Cookie Value Snkz
suricata
suricata: ET MALWARE Trojan Generic - POST To gate.php with no referer
suricata: ET MALWARE Trojan Generic - POST To gate.php with no referer
suricata

Blocklisted process makes network request 23 IoCs

Processes:

msiexec.exe

flow	pid	process
14	1996	msiexec.exe
16	1996	msiexec.exe
25	1996	msiexec.exe
32	1996	msiexec.exe
34	1996	msiexec.exe
38	1996	msiexec.exe
44	1996	msiexec.exe
46	1996	msiexec.exe
49	1996	msiexec.exe
54	1996	msiexec.exe
56	1996	msiexec.exe
58	1996	msiexec.exe
59	1996	msiexec.exe
60	1996	msiexec.exe
61	1996	msiexec.exe
62	1996	msiexec.exe
63	1996	msiexec.exe
66	1996	msiexec.exe
67	1996	msiexec.exe
69	1996	msiexec.exe
70	1996	msiexec.exe
71	1996	msiexec.exe
72	1996	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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wyyzy = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Vaed\\rawug.dll"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 1104 set thread context of 1996 1104 regsvr32.exe msiexec.exe
Drops file in Windows directory 1 IoCs

Processes:

regsvr32.exe

description ioc process

File opened for modification C:\Windows\ regsvr32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 1996 msiexec.exe
Token: SeSecurityPrivilege 1996 msiexec.exe

description	pid	process	target process
PID 1104 set thread context of 1996	1104	regsvr32.exe	msiexec.exe

description	ioc	process
File opened for modification	C:\Windows\	regsvr32.exe

description	pid	process
Token: SeSecurityPrivilege	1996	msiexec.exe
Token: SeSecurityPrivilege	1996	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 1628 wrote to memory of 1104	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 1104	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 1104	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 1104	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 1104	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 1104	1628	regsvr32.exe	regsvr32.exe
PID 1628 wrote to memory of 1104	1628	regsvr32.exe	regsvr32.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe
PID 1104 wrote to memory of 1996	1104	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\tim.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\tim.dll
2⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1104

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1996

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/1104-61-0x0000000000000000-mapping.dmp

Download
memory/1104-62-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/1104-63-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/1104-64-0x0000000010000000-0x0000000010072000-memory.dmp

Filesize
456KB

Download
memory/1628-60-0x000007FEFC031000-0x000007FEFC033000-memory.dmp

Filesize
8KB

Download
memory/1996-65-0x0000000000000000-mapping.dmp

Download
memory/1996-67-0x00000000000D0000-0x00000000000F6000-memory.dmp

Filesize
152KB

Download