zloader | becacb52a50004d42538cfe82c8f527f1793727c5f679f46df7f96eade272962

Analysis

max time kernel
92s
max time network
93s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
25-04-2023 17:26

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General

Target

HEUR-Backdoor.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

Processes:

msiexec.exe

flow	pid	process
4	2028	msiexec.exe
5	2028	msiexec.exe
6	2028	msiexec.exe
7	2028	msiexec.exe
8	2028	msiexec.exe
9	2028	msiexec.exe
10	2028	msiexec.exe
11	2028	msiexec.exe
12	2028	msiexec.exe
13	2028	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-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows\CurrentVersion\Run\Egodb = "C:\\Users\\Admin\\AppData\\Roaming\\Ihif\\ygcuic.exe"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HEUR-Backdoor.Win32.Dridex.exe

description pid process target process

PID 1108 set thread context of 2028 1108 HEUR-Backdoor.Win32.Dridex.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2028 msiexec.exe
Token: SeSecurityPrivilege 2028 msiexec.exe

description	pid	process	target process
PID 1108 set thread context of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	2028	msiexec.exe
Token: SeSecurityPrivilege	2028	msiexec.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

HEUR-Backdoor.Win32.Dridex.exe

description	pid	process	target process
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe
PID 1108 wrote to memory of 2028	1108	HEUR-Backdoor.Win32.Dridex.exe	msiexec.exe

C:\Users\Admin\AppData\Local\Temp\HEUR-Backdoor.Win32.Dridex.exe
"C:\Users\Admin\AppData\Local\Temp\HEUR-Backdoor.Win32.Dridex.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
2⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2028

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/2028-54-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download
memory/2028-55-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2028-56-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download
memory/2028-58-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download
memory/2028-59-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download