socks5systemz | f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7

General

Target

f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.exe
Size

5.0MB
MD5

cd3d41ff24acdaf33336c62e8f54b7ba
SHA1

abb1d9a5762821f4aad31146ace4d4845ed93b8d
SHA256

f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7
SHA512

f67856dafa8d27a5e4c264dab981dec4747727f65b140f1c0485718c390292a63fdcc86fc980d7c68716c33f7024dcf759dfd126c0d3b1c740728d241cee3d90
SSDEEP

98304:CwHt6o57vaXSqXWpnvQ6lpkQEEmsVqoIMOLDMBwSOnIDRvEd+fQx7:eo57vySJvbpkKV4o3MMp+ID5+MQt

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3232-84-0x0000000000A70000-0x0000000000B12000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp
60	vixenjunior32.exe
3232	vixenjunior32.exe

Loads dropped DLL 1 IoCs

pid	Process
984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp

Unexpected DNS network traffic destination 2 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	91.211.247.248
Destination IP	141.98.234.31

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 984	2368	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.exe	73
PID 2368 wrote to memory of 984	2368	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.exe	73
PID 2368 wrote to memory of 984	2368	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.exe	73
PID 984 wrote to memory of 60	984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp	74
PID 984 wrote to memory of 60	984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp	74
PID 984 wrote to memory of 60	984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp	74
PID 984 wrote to memory of 3232	984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp	75
PID 984 wrote to memory of 3232	984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp	75
PID 984 wrote to memory of 3232	984	f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp	75

C:\Users\Admin\AppData\Local\Temp\f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.exe
"C:\Users\Admin\AppData\Local\Temp\f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\is-5GCAL.tmp\f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-5GCAL.tmp\f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp" /SL5="$601F8,4984813,54272,C:\Users\Admin\AppData\Local\Temp\f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:984
- - C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe
    "C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:60
- - C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe
    "C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe

Filesize
3.4MB

MD5
3e37100cd81385e58f3cf10dca7298ef

SHA1
531bc59129b014a199275024c090cec0405df6d5

SHA256
35efdcb5095f91b8ae77431e4c6f1bcba487773f8210b6d116fc257502b3e5e6

SHA512
86e9390d5e556393024001b5889cd72b193f8b5f1c21ca1f476858a6674c701135330d2d9eb07691f1d149c4ba540de98e8e0f1f6be3a57fde44785152bceeaf

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5GCAL.tmp\f2f33a01d49f3b00ceeb2be892c4ff29c4e258586d5edd30fce8e029dd977ff7.tmp

Filesize
680KB

MD5
fddb6f72f126578c0c2a7d3a62eafa25

SHA1
bbc9db04383e8bdceab8ca241ff8b9d865d2da8b

SHA256
68aaee79b2d80910719c70c2995c1b7f113e3fd972eeb36ca3f5159f655b366d

SHA512
3e957f6080a88157b7807f635bf72ac28de3e5568b68c091e5b10b3ff0c99e3d2d70b5c06f7d3650d9198f101d177584c7e2ac28938f63475117be4e306284cd

Download Submit
\Users\Admin\AppData\Local\Temp\is-I78LS.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/60-59-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/60-60-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/60-63-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/984-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/984-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2368-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2368-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2368-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3232-81-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-100-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-72-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-75-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-78-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-65-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-84-0x0000000000A70000-0x0000000000B12000-memory.dmp

Filesize
648KB

Download
memory/3232-86-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-91-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-94-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-97-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-69-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-103-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-106-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-109-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-112-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-115-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-118-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-122-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-125-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download
memory/3232-128-0x0000000000400000-0x0000000000762000-memory.dmp

Filesize
3.4MB

Download

Analysis

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