zloader | 1ebd00fea702726c0362a8ca95eab89e1c1d8ecfa313ced4f328328dd51429f0

Analysis

max time kernel
79s
max time network
124s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 04:52

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General

Target

ec602e8263aec44b7cc4fbf930e5bc9affdc8232e9dd84a86e01198a349a827a.dll
Size

170KB
MD5

0892f2d684b734d64517348a4df16964
SHA1

b2e6c4a27dec2c67197560c8f2b82d6e119406a3
SHA256

ec602e8263aec44b7cc4fbf930e5bc9affdc8232e9dd84a86e01198a349a827a
SHA512

2bcbc000057d62fc59e8b902b91a5b4456b816cd93464e3b0b288f092336f63e4086f88734fde792b850e524c600b7d361c42c04946e4bdb5f61406e172e707f

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

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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Iqoryd = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Adal\\foylux.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 4840 set thread context of 4252 4840 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 4252 msiexec.exe
Token: SeSecurityPrivilege 4252 msiexec.exe

description	pid	process	target process
PID 4840 set thread context of 4252	4840	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	4252	msiexec.exe
Token: SeSecurityPrivilege	4252	msiexec.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 4700 wrote to memory of 4840	4700	regsvr32.exe	regsvr32.exe
PID 4700 wrote to memory of 4840	4700	regsvr32.exe	regsvr32.exe
PID 4700 wrote to memory of 4840	4700	regsvr32.exe	regsvr32.exe
PID 4840 wrote to memory of 4252	4840	regsvr32.exe	msiexec.exe
PID 4840 wrote to memory of 4252	4840	regsvr32.exe	msiexec.exe
PID 4840 wrote to memory of 4252	4840	regsvr32.exe	msiexec.exe
PID 4840 wrote to memory of 4252	4840	regsvr32.exe	msiexec.exe
PID 4840 wrote to memory of 4252	4840	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ec602e8263aec44b7cc4fbf930e5bc9affdc8232e9dd84a86e01198a349a827a.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4700

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\ec602e8263aec44b7cc4fbf930e5bc9affdc8232e9dd84a86e01198a349a827a.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4840

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:4252

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/4252-3-0x0000000000000000-mapping.dmp

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memory/4252-4-0x00000000032C0000-0x00000000032F0000-memory.dmp

Filesize
192KB

Download
memory/4840-2-0x0000000000000000-mapping.dmp

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