zloader | 1423053f90855d33858db47f354055b660943104c1c18f848c9b7b415979dc5f

max time kernel
121s
max time network
137s
platform
windows7_x64
resource
win7-20231025-en
resource tags

arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
submitted
22-11-2023 17:02

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General

Target

08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
Size

144KB
MD5

9e9bb42a965b89a9dce86c8b36b24799
SHA1

e2d1161ac7fa3420648ba59f7a5315ed0acb04c2
SHA256

08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d
SHA512

e5ba20e364c96260c821bc61eab51906e2075aa0d3755ef25aabfc8f6f9545452930be42d978d96e3a68e2b92120df4940b276c9872ebf36fa50913523c51ce8
SSDEEP

3072:ep1qwbk6Wbh/UR++pz1OBrNtZtHpspurmxwPtnneZY:epoP6WV/C116rNbtHpsYrmSP1neZY

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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ycga = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Bayf\\ecca.dll,DllRegisterServer"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 2456 set thread context of 2664 2456 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2664 msiexec.exe
Token: SeSecurityPrivilege 2664 msiexec.exe

description	pid	process	target process
PID 2456 set thread context of 2664	2456	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	2664	msiexec.exe
Token: SeSecurityPrivilege	2664	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 3016 wrote to memory of 2456	3016	regsvr32.exe	regsvr32.exe
PID 3016 wrote to memory of 2456	3016	regsvr32.exe	regsvr32.exe
PID 3016 wrote to memory of 2456	3016	regsvr32.exe	regsvr32.exe
PID 3016 wrote to memory of 2456	3016	regsvr32.exe	regsvr32.exe
PID 3016 wrote to memory of 2456	3016	regsvr32.exe	regsvr32.exe
PID 3016 wrote to memory of 2456	3016	regsvr32.exe	regsvr32.exe
PID 3016 wrote to memory of 2456	3016	regsvr32.exe	regsvr32.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe
PID 2456 wrote to memory of 2664	2456	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2456
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:2664

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

Replay Monitor

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Downloads

memory/2664-1-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2664-0-0x00000000000D0000-0x00000000000F5000-memory.dmp

Filesize
148KB

Download
memory/2664-3-0x00000000000D0000-0x00000000000F5000-memory.dmp

Filesize
148KB

Download