zloader | b37533b42dd24cc7efb7b1c4c71a70dac1a70623026e6c49dc50857b9e1f585c

General

Target

Device/HarddiskVolume7/imaginaryC2-master/examples/use-case-9-zloader/zloader-imaginary-c2/server_da.dll
Size

838KB
MD5

57138593c18492f813e426719ebed2e8
SHA1

7d44bd7d83dace54b68f93ef16b7a70173dc9ccf
SHA256

d0226de456f5fb75ae7588d57bb9368848aa01afae86893d6da2b95098080c97
SHA512

57097f8dea1681713ebe983f2e1829ea21536c1bb867865b65ce8497fca67ca89ae148f0a77bdd9c5622b60b29344a83bfea9b09cbf388336c764840b5e32daa
SSDEEP

6144:oxG3wZYnmy+9Mw6PeJ/Oubatb6pf4Pbjmr9UnbNzLLxsw:NwZYn72hSS9gbNzLLOw

Score

10^/10

zloader main 26.04.2020 botnet persistence trojan

Malware Config

Extracted

Family

zloader

Botnet

main

Campaign

26.04.2020

C2

https://coult.org/sound.php

https://chorbly.org/sound.php

https://kodray.org/sound.php

https://retualeigh.com/sound.php

https://grually.com/sound.php

https://footmess.com/sound.php

https://rarigussa.com/sound.php

https://pacallse.com/sound.php

Attributes

build_id
47

rc4.plain

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vuseomsy = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Sida\\dyic.dll,DllRegisterServer"	msiexec.exe

Blocklisted process makes network request 8 IoCs

flow	pid	Process
4	2904	msiexec.exe
7	2904	msiexec.exe
9	2904	msiexec.exe
10	2904	msiexec.exe
11	2904	msiexec.exe
12	2904	msiexec.exe
13	2904	msiexec.exe
14	2904	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2732 set thread context of 2904	2732	rundll32.exe	31

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2904	msiexec.exe
Token: SeSecurityPrivilege	2904	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2732	2932	rundll32.exe	28
PID 2932 wrote to memory of 2732	2932	rundll32.exe	28
PID 2932 wrote to memory of 2732	2932	rundll32.exe	28
PID 2932 wrote to memory of 2732	2932	rundll32.exe	28
PID 2932 wrote to memory of 2732	2932	rundll32.exe	28
PID 2932 wrote to memory of 2732	2932	rundll32.exe	28
PID 2932 wrote to memory of 2732	2932	rundll32.exe	28
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31
PID 2732 wrote to memory of 2904	2732	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume7\imaginaryC2-master\examples\use-case-9-zloader\zloader-imaginary-c2\server_da.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume7\imaginaryC2-master\examples\use-case-9-zloader\zloader-imaginary-c2\server_da.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Adds Run key to start application
    - Blocklisted process makes network request
    - Suspicious use of AdjustPrivilegeToken
    PID:2904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
67KB

MD5
753df6889fd7410a2e9fe333da83a429

SHA1
3c425f16e8267186061dd48ac1c77c122962456e

SHA256
b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

SHA512
9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
1d61e19498b9f5e4c849713e0ae5097d

SHA1
cae7ff9946a97366933293f345fefc0b3c0f7ca7

SHA256
c42a40bd517a0b51355c6aced6462aa20b0104b518d5555b236a9cffa10c21c4

SHA512
2412242044d9e684159c5dd861cc3123e1a0a64e16702ef9c035cb21d79c013ebd0c7a1fd59f23fbb534e3c8ff8c60211d1e31d9f9d1407d723350cbaa106e94

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabFFD4.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarDB0.tmp

Filesize
175KB

MD5
dd73cead4b93366cf3465c8cd32e2796

SHA1
74546226dfe9ceb8184651e920d1dbfb432b314e

SHA256
a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

SHA512
ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

Download Submit
memory/2732-0-0x00000000001B0000-0x0000000000201000-memory.dmp

Filesize
324KB

Download
memory/2732-1-0x0000000010000000-0x00000000100DA000-memory.dmp

Filesize
872KB

Download
memory/2732-3-0x00000000001B0000-0x0000000000201000-memory.dmp

Filesize
324KB

Download
memory/2732-13-0x0000000010000000-0x00000000100DA000-memory.dmp

Filesize
872KB

Download
memory/2904-9-0x0000000000090000-0x00000000000C4000-memory.dmp

Filesize
208KB

Download
memory/2904-10-0x00000000000D0000-0x00000000000D1000-memory.dmp

Filesize
4KB

Download
memory/2904-12-0x0000000000090000-0x00000000000C4000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads