socks5systemz | 830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1

General

Target

830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.exe
Size

4.9MB
MD5

0535ff5693c005e3477f56e2e40af06a
SHA1

8d8c7a5de465b4fa7bc0f585f03dfb2f1a2c1e92
SHA256

830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1
SHA512

778e401a4499d0a2852bc20b039ae3295ddfece3d49bea452489c495fbf38b877a0d95137aa60a982b76248f1d6927d23d96117854c901bc4e053d6b22185deb
SSDEEP

98304:CbEGKiABmNB3qozE5XBpKl8WRWaDHmO8eNBVvDCOMF2d1qM0jRzOqb/uoRFQxP:48Pmj3qozoRpKl8sWaDGOrZ+OiRjRzDy

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2072-87-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral1/memory/2072-110-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral1/memory/2072-109-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp
4740	bossplayaudio32_64.exe
2072	bossplayaudio32_64.exe

Loads dropped DLL 1 IoCs

pid	Process
5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.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	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
5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 5048	392	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.exe	85
PID 392 wrote to memory of 5048	392	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.exe	85
PID 392 wrote to memory of 5048	392	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.exe	85
PID 5048 wrote to memory of 4740	5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp	86
PID 5048 wrote to memory of 4740	5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp	86
PID 5048 wrote to memory of 4740	5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp	86
PID 5048 wrote to memory of 2072	5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp	87
PID 5048 wrote to memory of 2072	5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp	87
PID 5048 wrote to memory of 2072	5048	830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp	87

C:\Users\Admin\AppData\Local\Temp\830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.exe
"C:\Users\Admin\AppData\Local\Temp\830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:392
- C:\Users\Admin\AppData\Local\Temp\is-N1LQD.tmp\830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-N1LQD.tmp\830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp" /SL5="$702C2,4927196,54272,C:\Users\Admin\AppData\Local\Temp\830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:5048
- - C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio32_64.exe
    "C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio32_64.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4740
- - C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio32_64.exe
    "C:\Users\Admin\AppData\Local\BossPlayAudio\bossplayaudio32_64.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2072

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\BossPlayAudio\bossplayaudio32_64.exe

Filesize
3.4MB

MD5
117633ace67ce4560ac21d123373d717

SHA1
2dbf717714fe14e980571e67d6cb2ff04e340c41

SHA256
0be0d5b6f2f865d76adfedae2ddee8103958ecf84fac5138f199282160e17c58

SHA512
6814b542e5abf9e8f49646e358a7b4c62cbff637415fcd0cc28b2c1d06837eb5aa72a1bab705350d5830f108938a318e1a14f52eea3f8a4c763402c3a8b9b72e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-EU78S.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-N1LQD.tmp\830b07c65965309d93c2275e670e790c4f11e4ac29c2e60f4f9c94ffb2213ac1.tmp

Filesize
680KB

MD5
202952f3cd7f95acddbb84d4700b3d6a

SHA1
a65fab8a0b90538cc03f27813336be7e7d056cb2

SHA256
4fbcf9198ace2f5e26d8c481d3e2090ac59e1f309b3631d68738d7cc07220d98

SHA512
a22de6ff0ea7c26973f6196c1d80c4fc79a73853a174d8a13f5b522c3254b44202973659e67cb09449280a29dac849dc8b5b76650ecf33d5bc688417e8ed2387

Download Submit
memory/392-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/392-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/392-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2072-96-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-83-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-114-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-109-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/2072-110-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/2072-108-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-70-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-73-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-75-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-78-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-80-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-105-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-86-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-87-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/2072-93-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-103-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/2072-100-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/4740-61-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/4740-60-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/4740-64-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/4740-62-0x0000000000400000-0x0000000000763000-memory.dmp

Filesize
3.4MB

Download
memory/5048-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5048-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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