zloader | becacb52a50004d42538cfe82c8f527f1793727c5f679f46df7f96eade272962

Analysis

max time kernel
108s
max time network
109s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
07-05-2023 09:04

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General

Target

HEURBackdoor.Win32.Dridex.exe
Size

146KB
MD5

d93ca01a4515732a6a54df0a391c93e3
SHA1

ba31585616c3640a434c4c29193f0f89e8306485
SHA256

becacb52a50004d42538cfe82c8f527f1793727c5f679f46df7f96eade272962
SHA512

3e9c52c04cf37250e8d4e0e3a17cc27e17a1ff19c4935a788b77dafea28bd6ec0a514bdbe4073845c31559652c039f88f811b24020044c0b0e0c47f1cb9ac2e0
SSDEEP

3072:BHIbLRDJ1YGzRXczG9Nw5pwfhcMVd8v86jdbG42UO5LXrMUJKKMEj2Yi:BHcLRDz/czG9Mp2hcGd8vvjFG42PhMal

Score

10^/10

zloader -pit14 web7-pit14 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

-pit14

Campaign

web7-pit14

https://45.72.3.132/web7643/gate.php

Attributes

build_id
929195383

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 10 IoCs

flow	pid	Process
4	1516	msiexec.exe
5	1516	msiexec.exe
6	1516	msiexec.exe
7	1516	msiexec.exe
8	1516	msiexec.exe
9	1516	msiexec.exe
10	1516	msiexec.exe
11	1516	msiexec.exe
12	1516	msiexec.exe
13	1516	msiexec.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ocohih = "C:\\Users\\Admin\\AppData\\Roaming\\Dyoby\\gyfogyic.exe"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1728 set thread context of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1516	msiexec.exe
Token: SeSecurityPrivilege	1516	msiexec.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28
PID 1728 wrote to memory of 1516	1728	HEURBackdoor.Win32.Dridex.exe	28

C:\Users\Admin\AppData\Local\Temp\HEURBackdoor.Win32.Dridex.exe
"C:\Users\Admin\AppData\Local\Temp\HEURBackdoor.Win32.Dridex.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\msiexec.exe
  msiexec.exe
  2⤵
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:1516

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1516-54-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download
memory/1516-56-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download
memory/1516-55-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/1516-58-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download
memory/1516-59-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download