socks5systemz | 59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159

General

Target

59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.exe
Size

4.7MB
MD5

12e13492174516c6c0dc91d2c04e5dba
SHA1

334ba170e32eb9ef281fda47dfe9d7eba91f583d
SHA256

59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159
SHA512

495ffab453e73f7e17cd88466c6e976f71c7460ae86eedbdc902df18dcf41a323a27511e3195810a6a1a8d7c384c36b7021f8b4b06954fa08fcef835df72ade1
SSDEEP

98304:m6xqATbhIsGqlhSghKNXYyEeQJ67HDjeHgt9PcAUjmJwnNi56C:syrGqlhSNQwrDjJ/PFUjmiI5n

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1264-87-0x00000000024E0000-0x0000000002582000-memory.dmp	family_socks5systemz
behavioral2/memory/1264-110-0x00000000024E0000-0x0000000002582000-memory.dmp	family_socks5systemz
behavioral2/memory/1264-111-0x00000000024E0000-0x0000000002582000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp
1312	fhaudioconverter.exe
1264	fhaudioconverter.exe

Loads dropped DLL 1 IoCs

pid	Process
3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.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
3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 3060	4728	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.exe	78
PID 4728 wrote to memory of 3060	4728	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.exe	78
PID 4728 wrote to memory of 3060	4728	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.exe	78
PID 3060 wrote to memory of 1312	3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp	79
PID 3060 wrote to memory of 1312	3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp	79
PID 3060 wrote to memory of 1312	3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp	79
PID 3060 wrote to memory of 1264	3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp	80
PID 3060 wrote to memory of 1264	3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp	80
PID 3060 wrote to memory of 1264	3060	59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp	80

C:\Users\Admin\AppData\Local\Temp\59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.exe
"C:\Users\Admin\AppData\Local\Temp\59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Users\Admin\AppData\Local\Temp\is-L5DH8.tmp\59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-L5DH8.tmp\59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp" /SL5="$501FE,4631121,54272,C:\Users\Admin\AppData\Local\Temp\59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3060
- - C:\Users\Admin\AppData\Local\FHaudioConverter\fhaudioconverter.exe
    "C:\Users\Admin\AppData\Local\FHaudioConverter\fhaudioconverter.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1312
- - C:\Users\Admin\AppData\Local\FHaudioConverter\fhaudioconverter.exe
    "C:\Users\Admin\AppData\Local\FHaudioConverter\fhaudioconverter.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1264

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\FHaudioConverter\fhaudioconverter.exe

Filesize
2.8MB

MD5
93d1a4008ce3c916d5ef2c1390c8dfae

SHA1
e9b38f96c467a86af3c3342b292f681ff0f6c75c

SHA256
b77c31bdbeac2ff564debe89ff61f4e3cfdeef15e4b7c9c10f34a8b43e14e652

SHA512
75ac5b7212b1baf335a75c78f586d2ebe0898ab36b56eff44315ddd6e328640bdcf9ddf941984b500585f635049c85746be6ebab4804de381174d1ae477568a0

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0S5K7.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-L5DH8.tmp\59e885eec9bd267be13ef42bfe4334de953721556ba780e591c7b9343d12e159.tmp

Filesize
680KB

MD5
f707d9176fd08a2c70b0c7260477aa87

SHA1
75876bef351f2151175a86a8e15e331a18e687e4

SHA256
e39d91019c8125dcfbeb1e107643175227e54c226f3df6138031fd4359fa32ee

SHA512
2de874f23fc2734a5930f19ad3201e5748f590db9e59f5db3c6b9691ccb961e80550fc47b9ce12f0da087dd4b73a4d7d317b0ddc29d9379c92804ea26712db55

Download Submit
memory/1264-94-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-78-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-118-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-115-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-111-0x00000000024E0000-0x0000000002582000-memory.dmp

Filesize
648KB

Download
memory/1264-110-0x00000000024E0000-0x0000000002582000-memory.dmp

Filesize
648KB

Download
memory/1264-67-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-68-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-109-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-106-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-71-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-75-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-74-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-103-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-81-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-84-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-87-0x00000000024E0000-0x0000000002582000-memory.dmp

Filesize
648KB

Download
memory/1264-88-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-100-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1264-97-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1312-64-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1312-60-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/1312-59-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/3060-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3060-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4728-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4728-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4728-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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