socks5systemz | 1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8

General

Target

1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.exe
Size

5.3MB
MD5

8ba6359718b2ad90d72584a98bdd054a
SHA1

e602f6f42afb59fc46ad9be7aae493b1af67552b
SHA256

1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8
SHA512

5d14332ac30dcd90e35b68d4aee5839815f3df4259359f945032da291a3078bfc059a2fdbcddeb8c42d44328a7eb4817cd05a4fba6db55f2d89745984dff4be6
SSDEEP

98304:mRfQNdLUcVW05gWsiXVm0kajZd3jGYG7ckl0DTCNvGLNwTIFNv:OQNacMssTa1G7ckW3QGLNACR

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2548-93-0x0000000000850000-0x00000000008F2000-memory.dmp	family_socks5systemz
behavioral1/memory/2548-116-0x0000000000850000-0x00000000008F2000-memory.dmp	family_socks5systemz
behavioral1/memory/2548-117-0x0000000000850000-0x00000000008F2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp
4264	soundermidiplayer.exe
2548	soundermidiplayer.exe

Loads dropped DLL 3 IoCs

pid	Process
2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp
2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp
2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.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	152.89.198.214

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
2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3512 wrote to memory of 2408	3512	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.exe	82
PID 3512 wrote to memory of 2408	3512	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.exe	82
PID 3512 wrote to memory of 2408	3512	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.exe	82
PID 2408 wrote to memory of 4264	2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp	83
PID 2408 wrote to memory of 4264	2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp	83
PID 2408 wrote to memory of 4264	2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp	83
PID 2408 wrote to memory of 2548	2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp	85
PID 2408 wrote to memory of 2548	2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp	85
PID 2408 wrote to memory of 2548	2408	1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp	85

C:\Users\Admin\AppData\Local\Temp\1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.exe
"C:\Users\Admin\AppData\Local\Temp\1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3512
- C:\Users\Admin\AppData\Local\Temp\is-GCGNC.tmp\1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-GCGNC.tmp\1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp" /SL5="$A0046,5262586,54272,C:\Users\Admin\AppData\Local\Temp\1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Users\Admin\AppData\Local\Sounder Midi Player\soundermidiplayer.exe
    "C:\Users\Admin\AppData\Local\Sounder Midi Player\soundermidiplayer.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4264
- - C:\Users\Admin\AppData\Local\Sounder Midi Player\soundermidiplayer.exe
    "C:\Users\Admin\AppData\Local\Sounder Midi Player\soundermidiplayer.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2548

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\Sounder Midi Player\soundermidiplayer.exe

Filesize
2.3MB

MD5
89ce51b9414b4eabd5b7672e5e03e9d3

SHA1
58d5da5a0e9c909bcd619ef2151379d6b67d42b0

SHA256
2b448d48e781f66819d66ca5e973ff385b8715eb29a9d7f1001122dbea592ff2

SHA512
f3443ae5923027ffb66e0e6fc659ec18748306b2c650d767a16a83063333d8ca0b2b25af00498259d1bd9f0c78158c92f0b8a31fbed1e9830330c8350d83bfe2

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-B9GU5.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-B9GU5.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GCGNC.tmp\1790025dfd2bfef070a5321dae54cd639020f087c6f0a81372e92e4a1dc304a8.tmp

Filesize
680KB

MD5
2b1448b48874851ff092b32dae44cfea

SHA1
a156c72c6f87817a3c88a0232bbafa39aa36301b

SHA256
08d83cc7c62e673495c8e18b6ff1e7600397c7ff9c3bd3b580678d50fcf3e950

SHA512
923195ffefc70808c1f63688e40500021b4a75e660c00dd110e08a6910f8ac85aef0736116f76096fffb34966aafff1bb3c5c2d6ff809951a94b47e2625bb3a7

Download Submit
memory/2408-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2408-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2548-100-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-112-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-124-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-121-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-117-0x0000000000850000-0x00000000008F2000-memory.dmp

Filesize
648KB

Download
memory/2548-74-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-116-0x0000000000850000-0x00000000008F2000-memory.dmp

Filesize
648KB

Download
memory/2548-115-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-77-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-80-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-83-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-86-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-89-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-93-0x0000000000850000-0x00000000008F2000-memory.dmp

Filesize
648KB

Download
memory/2548-94-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-109-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-103-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/2548-106-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/3512-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3512-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3512-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4264-65-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/4264-66-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/4264-71-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/4264-69-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download

Analysis

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