socks5systemz | 240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4

General

Target

240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.exe
Size

5.1MB
MD5

3a98bcc901ad9092fa465d5d4897d2c6
SHA1

39a11b2d6ffccc16951531518082da47f38ff107
SHA256

240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4
SHA512

4bde6d5e6bd76e305896cfebd582cc4a58ab291a27e32e20b19f02a611643fcdd470451d00ab7a19fb70272cb63a32c9e6b312b640d16b3fcdb346f9cfe99c6c
SSDEEP

98304:C27zdetAkn0SrwArb5XAliH1Nuwy6XLZldFyI5BYHSotA8QxYM:JNiAUrXf5XAlI1856XLhTYHSB8QZ

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/4540-86-0x0000000000A10000-0x0000000000AB2000-memory.dmp	family_socks5systemz
behavioral1/memory/4540-109-0x0000000000A10000-0x0000000000AB2000-memory.dmp	family_socks5systemz
behavioral1/memory/4540-110-0x0000000000A10000-0x0000000000AB2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp
3596	maestromagicscore.exe
4540	maestromagicscore.exe

Loads dropped DLL 1 IoCs

pid	Process
3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp

Unexpected DNS network traffic destination 1 IoCs

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

description	ioc
Destination IP	45.155.250.90

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
3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 3504	1712	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.exe	86
PID 1712 wrote to memory of 3504	1712	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.exe	86
PID 1712 wrote to memory of 3504	1712	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.exe	86
PID 3504 wrote to memory of 3596	3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp	89
PID 3504 wrote to memory of 3596	3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp	89
PID 3504 wrote to memory of 3596	3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp	89
PID 3504 wrote to memory of 4540	3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp	90
PID 3504 wrote to memory of 4540	3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp	90
PID 3504 wrote to memory of 4540	3504	240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp	90

C:\Users\Admin\AppData\Local\Temp\240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.exe
"C:\Users\Admin\AppData\Local\Temp\240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\is-3EBNA.tmp\240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-3EBNA.tmp\240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp" /SL5="$70234,5140367,54272,C:\Users\Admin\AppData\Local\Temp\240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Users\Admin\AppData\Local\Maestro Magic Score\maestromagicscore.exe
    "C:\Users\Admin\AppData\Local\Maestro Magic Score\maestromagicscore.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3596
- - C:\Users\Admin\AppData\Local\Maestro Magic Score\maestromagicscore.exe
    "C:\Users\Admin\AppData\Local\Maestro Magic Score\maestromagicscore.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4540

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\Maestro Magic Score\maestromagicscore.exe

Filesize
3.2MB

MD5
8250aa9d28bd0918b48fe71213975cb1

SHA1
59b688d79d74bbd401aa916f0294eac9358492c7

SHA256
2fc94934893b6bb46398a0fe7e5b2de71a683dc77351785a1ecc55ab4ebc0996

SHA512
4257b79179e24aeeee68f7816b4237c49f51c19f28a48db2e3a29488f2542be21758dc1f4626326cf853cd0baffb98b82b00c6671636e301cedfa61aead7c467

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-3EBNA.tmp\240bb8941f4ca56e46bc1be27b716a6c3e8dfd71073fc106502a50caf7b473d4.tmp

Filesize
680KB

MD5
e97aca8ddbba624555f7c593ef2312c8

SHA1
d2bedee9565b7cc78594c28ad2579fa81989447a

SHA256
a83b308a4c4854f54c8f06fb661d5bef34c056d65595ee4f0ab6b63a9876d89d

SHA512
e152c5dac0ae9a08306f051b1a93447ffc0c72c687d82da03b9bb35ea1efd7aac61b22f2f0fad389ad8ae714efcb571b988d43a427f55618ecdd1a4a0ef27bba

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-V77U9.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1712-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1712-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1712-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3504-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3504-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3596-61-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/3596-63-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/3596-65-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/3596-60-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-74-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-96-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-68-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-77-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-80-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-83-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-86-0x0000000000A10000-0x0000000000AB2000-memory.dmp

Filesize
648KB

Download
memory/4540-90-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-93-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-71-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-99-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-102-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-105-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-108-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-109-0x0000000000A10000-0x0000000000AB2000-memory.dmp

Filesize
648KB

Download
memory/4540-110-0x0000000000A10000-0x0000000000AB2000-memory.dmp

Filesize
648KB

Download
memory/4540-114-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download
memory/4540-117-0x0000000000400000-0x0000000000731000-memory.dmp

Filesize
3.2MB

Download

Analysis

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