socks5systemz | b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e

General

Target

b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe
Size

2.0MB
MD5

c0936b0b60581abf999cb8db58c887d6
SHA1

b6817af3e994b051935cfa2bdb7de674c5f7f949
SHA256

b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e
SHA512

117d8f65c863db9c6514d17fff354a65c1faaee582fe630fb7713ae7f9cbc969013f0c17fe01fc763f0f42b3f090021fdca16672cde26a17038ba1b36584e094
SSDEEP

49152:32mReh8xhZ4DirVux6pKP79FS+iZM95cALWatNiCtQUOK+oR98:mmQab4Dq84oR0+4MQGHcWQqHR6

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

csoazlp.net

http://csoazlp.net/search/?q=67e28dd83e55a37d1508fa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978f071ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923f658cf713c8e99c

http://csoazlp.net/search/?q=67e28dd83e55a37d1508fa1d7c27d78406abdd88be4b12eab517aa5c96bd86ec94804c815a8bbc896c58e713bc90c91e36b5281fc235a925ed3e53d6bd974a95129070b611e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff815c2ed9d9833cb66

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2936-76-0x0000000002560000-0x0000000002602000-memory.dmp	family_socks5systemz
behavioral1/memory/2936-98-0x0000000002560000-0x0000000002602000-memory.dmp	family_socks5systemz
behavioral1/memory/2936-99-0x0000000002560000-0x0000000002602000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp
2136	markdownpad32.exe
2936	markdownpad32.exe

Loads dropped DLL 6 IoCs

pid	Process
2064	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe
2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp
2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp
2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp
2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp
2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.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	flow	ioc	pid	Process
Destination IP	2	141.98.234.31	2936	markdownpad32.exe

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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	markdownpad32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	markdownpad32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 2088	2064	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe	30
PID 2064 wrote to memory of 2088	2064	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe	30
PID 2064 wrote to memory of 2088	2064	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe	30
PID 2064 wrote to memory of 2088	2064	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe	30
PID 2064 wrote to memory of 2088	2064	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe	30
PID 2064 wrote to memory of 2088	2064	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe	30
PID 2064 wrote to memory of 2088	2064	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe	30
PID 2088 wrote to memory of 2136	2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp	31
PID 2088 wrote to memory of 2136	2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp	31
PID 2088 wrote to memory of 2136	2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp	31
PID 2088 wrote to memory of 2136	2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp	31
PID 2088 wrote to memory of 2936	2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp	32
PID 2088 wrote to memory of 2936	2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp	32
PID 2088 wrote to memory of 2936	2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp	32
PID 2088 wrote to memory of 2936	2088	b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp	32

C:\Users\Admin\AppData\Local\Temp\b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe
"C:\Users\Admin\AppData\Local\Temp\b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\is-84VB2.tmp\b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-84VB2.tmp\b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp" /SL5="$40026,1722205,54272,C:\Users\Admin\AppData\Local\Temp\b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2088
- - C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe
    "C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2136
- - C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe
    "C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:2936

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe

Filesize
1.8MB

MD5
e1377c17e6c6bf04ead10fc76a847e2a

SHA1
1963ab0f5faca44637fd0fe8b1041c763bceebb1

SHA256
a52e5779bec20092f903389069e5ba5c6060987e255b203b6b0d9d5ac791296b

SHA512
9bc7d2fac768d4472b0629ae6ed308663b9902a486a9022f1f3a6c4bc09793c639a8e51968baf07d835592e156adbecee6bd705b1289dd0885c1665c761d8808

Download Submit
\Users\Admin\AppData\Local\Temp\is-84VB2.tmp\b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e.tmp

Filesize
677KB

MD5
88d7ea648defbc2597fa38ef83112eda

SHA1
2bce9acfb1b5e08dc29c695eff12fc80949c6440

SHA256
5a53b8bd78b1bbf24136b4d8d8191f503abcc24934626ed6f15bf9f6dee17b68

SHA512
050ce971e1f7a4e92d272c9c3c9f96f1214286523b018a75084c76dbebb5f32a717afbd9af9c68b7ad71f738c0a331640a8fe765cb4def90678eae4769b2e66a

Download Submit
\Users\Admin\AppData\Local\Temp\is-VGHOT.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-VGHOT.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
\Users\Admin\AppData\Local\Temp\is-VGHOT.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2064-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2064-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2064-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2088-9-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2088-55-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2088-56-0x0000000003710000-0x00000000038E4000-memory.dmp

Filesize
1.8MB

Download
memory/2088-45-0x0000000003710000-0x00000000038E4000-memory.dmp

Filesize
1.8MB

Download
memory/2136-47-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2136-48-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2136-52-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-66-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-91-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-63-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-59-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-69-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-72-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-75-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-76-0x0000000002560000-0x0000000002602000-memory.dmp

Filesize
648KB

Download
memory/2936-82-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-85-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-88-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-60-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-94-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-97-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-98-0x0000000002560000-0x0000000002602000-memory.dmp

Filesize
648KB

Download
memory/2936-99-0x0000000002560000-0x0000000002602000-memory.dmp

Filesize
648KB

Download
memory/2936-103-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-106-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-109-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-112-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-115-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download
memory/2936-118-0x0000000000400000-0x00000000005D4000-memory.dmp

Filesize
1.8MB

Download

Analysis

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