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
1605s
max time network
1611s
platform
windows10-1703_x64
resource
win10-20230703-en
resource tags

arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
submitted
27-07-2023 11:24

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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 botnet persistence trojan

Malware Config

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 44 IoCs

flow	pid	Process
9	4892	msiexec.exe
11	4892	msiexec.exe
14	4892	msiexec.exe
17	4892	msiexec.exe
20	4892	msiexec.exe
22	4892	msiexec.exe
27	4892	msiexec.exe
30	4892	msiexec.exe
41	4892	msiexec.exe
42	4892	msiexec.exe
43	4892	msiexec.exe
44	4892	msiexec.exe
45	4892	msiexec.exe
47	4892	msiexec.exe
48	4892	msiexec.exe
50	4892	msiexec.exe
54	4892	msiexec.exe
55	4892	msiexec.exe
56	4892	msiexec.exe
57	4892	msiexec.exe
58	4892	msiexec.exe
59	4892	msiexec.exe
60	4892	msiexec.exe
64	4892	msiexec.exe
65	4892	msiexec.exe
66	4892	msiexec.exe
67	4892	msiexec.exe
68	4892	msiexec.exe
69	4892	msiexec.exe
70	4892	msiexec.exe
74	4892	msiexec.exe
75	4892	msiexec.exe
76	4892	msiexec.exe
77	4892	msiexec.exe
78	4892	msiexec.exe
79	4892	msiexec.exe
80	4892	msiexec.exe
84	4892	msiexec.exe
85	4892	msiexec.exe
86	4892	msiexec.exe
87	4892	msiexec.exe
88	4892	msiexec.exe
89	4892	msiexec.exe
90	4892	msiexec.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2393848421-2120571652-2495149697-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2393848421-2120571652-2495149697-1000\Software\Microsoft\Windows\CurrentVersion\Run\Icdiihf = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Cubyec\\hyhua.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1000 set thread context of 4892	1000	regsvr32.exe	71

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	4892	msiexec.exe
Token: SeSecurityPrivilege	4892	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 1000	4876	regsvr32.exe	70
PID 4876 wrote to memory of 1000	4876	regsvr32.exe	70
PID 4876 wrote to memory of 1000	4876	regsvr32.exe	70
PID 1000 wrote to memory of 4892	1000	regsvr32.exe	71
PID 1000 wrote to memory of 4892	1000	regsvr32.exe	71
PID 1000 wrote to memory of 4892	1000	regsvr32.exe	71
PID 1000 wrote to memory of 4892	1000	regsvr32.exe	71
PID 1000 wrote to memory of 4892	1000	regsvr32.exe	71

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8.dll
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Blocklisted process makes network request
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:4892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4892-122-0x0000000002ED0000-0x0000000002EF1000-memory.dmp

Filesize
132KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads