zloader | 38bc13ef112b2f17d4d1a80243fac6a521b5d58228984aae0752d79487fa3b66

Resubmissions

15/04/2025, 17:34

250415-v5ylksypw9 10

15/04/2025, 06:16

14/04/2025, 08:06

14/04/2025, 07:59

14/04/2025, 07:22

14/04/2025, 07:16

11/04/2025, 21:39

01/04/2025, 21:24

Analysis

max time kernel
148s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
14/04/2025, 08:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

wwf[1].exe
Size

2.3MB
MD5

f18334d87221ecb0fb12405814c21912
SHA1

2875140558c0c17a259ff2d731e5e4a0a823108a
SHA256

0263c76856472535f8441f582dac011dbf52f965086f9e59a6930c00b2106073
SHA512

fa96425f2402803b7c34ea27211c33257224f65966cb42c651fa688bc131bbae6dbf7fc743eb055398fc2e4a0841a17ff31097346c4666ba39607e974c22ae2d
SSDEEP

49152:jUEJpE+TT7TDGBcuHsi7Ly2Cr2SRtgbR9iTp1woifnUWtMbuIJ0y:jBnE+TT/DGTHs8yVr2n99iTpiXfnUWtS

Score

10^/10

zloader bot7 bot7 botnet discovery persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

bot7

Campaign

bot7

https://militanttra.at/owg.php

Attributes

build_id
18

rc4.plain

rsa_pubkey.plain

Signatures

Zloader family
zloader
Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Executes dropped EXE 1 IoCs

pid	Process
4976	ykyxipf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xeepm = "C:\\Users\\Admin\\AppData\\Roaming\\Atuf\\ykyxipf.exe"	msiexec.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2280 set thread context of 5300	2280	wwf[1].exe	94
PID 4976 set thread context of 2752	4976	ykyxipf.exe	98

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ykyxipf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wwf[1].exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	5300	msiexec.exe
Token: SeSecurityPrivilege	5300	msiexec.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 5300	2280	wwf[1].exe	94
PID 2280 wrote to memory of 5300	2280	wwf[1].exe	94
PID 2280 wrote to memory of 5300	2280	wwf[1].exe	94
PID 2280 wrote to memory of 5300	2280	wwf[1].exe	94
PID 2280 wrote to memory of 5300	2280	wwf[1].exe	94
PID 4904 wrote to memory of 4976	4904	cmd.exe	97
PID 4904 wrote to memory of 4976	4904	cmd.exe	97
PID 4904 wrote to memory of 4976	4904	cmd.exe	97
PID 4976 wrote to memory of 2752	4976	ykyxipf.exe	98
PID 4976 wrote to memory of 2752	4976	ykyxipf.exe	98
PID 4976 wrote to memory of 2752	4976	ykyxipf.exe	98
PID 4976 wrote to memory of 2752	4976	ykyxipf.exe	98
PID 4976 wrote to memory of 2752	4976	ykyxipf.exe	98

C:\Users\Admin\AppData\Local\Temp\wwf[1].exe
"C:\Users\Admin\AppData\Local\Temp\wwf[1].exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\msiexec.exe
  msiexec.exe
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5300

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Atuf\ykyxipf.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Users\Admin\AppData\Roaming\Atuf\ykyxipf.exe
  C:\Users\Admin\AppData\Roaming\Atuf\ykyxipf.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4976
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2752

Network

MITRE ATT&CK Enterprise v16

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Atuf\ykyxipf.exe

Filesize
2.3MB

MD5
f18334d87221ecb0fb12405814c21912

SHA1
2875140558c0c17a259ff2d731e5e4a0a823108a

SHA256
0263c76856472535f8441f582dac011dbf52f965086f9e59a6930c00b2106073

SHA512
fa96425f2402803b7c34ea27211c33257224f65966cb42c651fa688bc131bbae6dbf7fc743eb055398fc2e4a0841a17ff31097346c4666ba39607e974c22ae2d

Download Submit
memory/2280-2-0x0000000000A60000-0x0000000000CAC000-memory.dmp

Filesize
2.3MB

Download
memory/2280-0-0x0000000000C53000-0x0000000000C56000-memory.dmp

Filesize
12KB

Download
memory/2280-4-0x0000000000C53000-0x0000000000C56000-memory.dmp

Filesize
12KB

Download
memory/2280-12-0x0000000000A60000-0x0000000000CAC000-memory.dmp

Filesize
2.3MB

Download
memory/2280-1-0x0000000000A60000-0x0000000000CAC000-memory.dmp

Filesize
2.3MB

Download
memory/2752-29-0x0000000001290000-0x00000000012BC000-memory.dmp

Filesize
176KB

Download
memory/4976-19-0x0000000000F53000-0x0000000000F56000-memory.dmp

Filesize
12KB

Download
memory/4976-21-0x0000000000D60000-0x0000000000FAC000-memory.dmp

Filesize
2.3MB

Download
memory/4976-20-0x0000000000D60000-0x0000000000FAC000-memory.dmp

Filesize
2.3MB

Download
memory/4976-23-0x0000000000F53000-0x0000000000F56000-memory.dmp

Filesize
12KB

Download
memory/4976-31-0x0000000000D60000-0x0000000000FAC000-memory.dmp

Filesize
2.3MB

Download
memory/5300-15-0x0000000000140000-0x000000000016C000-memory.dmp

Filesize
176KB

Download
memory/5300-14-0x0000000000140000-0x000000000016C000-memory.dmp

Filesize
176KB

Download
memory/5300-10-0x0000000000140000-0x000000000016C000-memory.dmp

Filesize
176KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads