socks5systemz | b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7

General

Target

b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.exe
Size

1.8MB
MD5

a69e738f1d163210908802e031a8fc59
SHA1

19f760fdf998f5b842115055c486185831fd0389
SHA256

b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7
SHA512

b6297ff9189f278592b4bde0331110f900b6cd3625f64c9de8c9d0cce4ea16284827480897f69eb44775e60f3e55ecc53d6129b4ce308314464e75b228ad0032
SSDEEP

49152:323no3cB1yTThNHNcD5LMRbcbHt5qmg4pz:mXosBcNt4Nom7l

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bbeipdn.com/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe14c7e7949a3e

Signatures

Detect Socks5Systemz Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3688-73-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral2/memory/3688-83-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp
2112	htmlpadhunt.exe
3688	htmlpadhunt.exe

Loads dropped DLL 3 IoCs

pid	Process
2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp
2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp
2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.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 WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 2652	644	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.exe	79
PID 644 wrote to memory of 2652	644	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.exe	79
PID 644 wrote to memory of 2652	644	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.exe	79
PID 2652 wrote to memory of 2112	2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp	81
PID 2652 wrote to memory of 2112	2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp	81
PID 2652 wrote to memory of 2112	2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp	81
PID 2652 wrote to memory of 3688	2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp	82
PID 2652 wrote to memory of 3688	2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp	82
PID 2652 wrote to memory of 3688	2652	b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp	82

C:\Users\Admin\AppData\Local\Temp\b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.exe
"C:\Users\Admin\AppData\Local\Temp\b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:644
- C:\Users\Admin\AppData\Local\Temp\is-G5VR4.tmp\b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-G5VR4.tmp\b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp" /SL5="$C0218,1552793,54272,C:\Users\Admin\AppData\Local\Temp\b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2652
- - C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe
    "C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2112
- - C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe
    "C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3688

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\HTML Pad Hunter\htmlpadhunt.exe

Filesize
1.6MB

MD5
4ddd9bef88a5036ab61d3ef8a6fc1cfa

SHA1
5c88d06dd71742157099890ed213f410c24e0deb

SHA256
a11069e5867e754f823bfdc0ce508750e9924cee52403ac68ec67fccb9548bdc

SHA512
47f10e8b26539ebf2d0dc46f4a49f0ef44875d0c76c6567a04d24f78e73d5c60ab13acd116baa3919aac3e5fb6b5889cd7d3931718ddeebb9293370feb626259

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-G5VR4.tmp\b16dad9ce537f49e29872d097cd90cb47878baa40c052148399634d3b3c256d7.tmp

Filesize
677KB

MD5
ed5aaa73297efebf32e02e1b894ff97f

SHA1
2cdf7a7b8a8bf981fbdd6c48d521eb75b9bb346f

SHA256
100656adcfaee0113fa42755f4b960960feee667f5e960b83f271337b4e71386

SHA512
bc1319543b318db87539b7bc828fad665a8dd6f71ab474df920b181114b9bf4c14fc228d1d043a16de3c1cce44ff81c874eadec67c0bbbbcf8aa12472e522a4a

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
memory/644-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/644-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2112-44-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/2112-45-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/2112-46-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/2112-49-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/2652-56-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/2652-7-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/2652-54-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3688-73-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/3688-79-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-59-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-60-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-63-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-66-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-69-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-72-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-52-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-55-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-82-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-83-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/3688-86-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-89-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-92-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-95-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-99-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download
memory/3688-102-0x0000000000400000-0x000000000059D000-memory.dmp

Filesize
1.6MB

Download

Analysis

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