socks5systemz | 61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b

General

Target

61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe
Size

4.8MB
MD5

5564d28c046464259ce7405f443b89a4
SHA1

2daf044161779f2440fc8e0450bf0f212c458546
SHA256

61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b
SHA512

5142fc81bb306aad6db9e5cc6e6950c272f118c3e621770ca60a74432879f9f07fa483db016d32fe39629e1cf797af017261e6b0647ea0fb9255a17f81c0eb98
SSDEEP

98304:mIZCVoojx1KD0O9G4XrGyB1KQd3bYP/I/z7wGMPM7oakvnnQK1i:zCV9lE0O913R0P/YkGMUlkvQ6i

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bxuisiu.com

http://bxuisiu.com/search/?q=67e28dd83859fa2b145ba44a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6e8bfd19c9ed92

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2524-92-0x0000000002250000-0x00000000022F2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
2720	winypux32.exe
2524	winypux32.exe

Loads dropped DLL 5 IoCs

pid	Process
2980	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe
2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.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	91.211.247.248

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
2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2068	2980	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe	28
PID 2980 wrote to memory of 2068	2980	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe	28
PID 2980 wrote to memory of 2068	2980	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe	28
PID 2980 wrote to memory of 2068	2980	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe	28
PID 2980 wrote to memory of 2068	2980	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe	28
PID 2980 wrote to memory of 2068	2980	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe	28
PID 2980 wrote to memory of 2068	2980	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe	28
PID 2068 wrote to memory of 2720	2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp	29
PID 2068 wrote to memory of 2720	2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp	29
PID 2068 wrote to memory of 2720	2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp	29
PID 2068 wrote to memory of 2720	2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp	29
PID 2068 wrote to memory of 2524	2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp	30
PID 2068 wrote to memory of 2524	2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp	30
PID 2068 wrote to memory of 2524	2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp	30
PID 2068 wrote to memory of 2524	2068	61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp	30

C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe
"C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Users\Admin\AppData\Local\Temp\is-VF4TA.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-VF4TA.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp" /SL5="$500F8,4763677,54272,C:\Users\Admin\AppData\Local\Temp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2068
- - C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
    "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2720
- - C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
    "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2524

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

\Users\Admin\AppData\Local\Temp\is-OV83N.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-OV83N.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-VF4TA.tmp\61e56decd39164744b6732251886da4865c32d5713d0303ce69d21f02859790b.tmp

Filesize
680KB

MD5
ee6bb54f61abc5841cec671dbc2048b7

SHA1
336daad05b759a53ca82410918ad3a3e6140ac03

SHA256
e53d361f625cfd3769377684d87473d9ce687654f018caf64fd67c4bf881c8d5

SHA512
5bf7399be57cab50c20e691915494a9bbb43e5c03e7b6891ef5b42e27a105900f4481a2bad3232441871e0940fd9c17a039f2e76f2c6140f26da4df73bfbaacd

Download Submit
\Users\Admin\AppData\Local\Winypux\winypux32.exe

Filesize
2.8MB

MD5
782c72372522d8c70bfacfc6ea168f5e

SHA1
dcb5f82f083a08eb248937937c8df2792c9536e4

SHA256
5b97a641e288c49101fcb40959a72c7bfc5105e65a204165bc3c3fc00ad9b496

SHA512
4f4c657f239ce605083287c14fe0f16d87457240434022860cb85d573c7c269a290aa1b63dd84e3b76d28a9039b8b18c5c13aba1b2cd70f40ab3be92123829ab

Download Submit
memory/2068-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2068-76-0x0000000003630000-0x00000000038F8000-memory.dmp

Filesize
2.8MB

Download
memory/2068-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2068-64-0x0000000003630000-0x00000000038F8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-104-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-113-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-137-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-71-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-132-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-129-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-75-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-126-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-79-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-82-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-85-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-88-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-91-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-92-0x0000000002250000-0x00000000022F2000-memory.dmp

Filesize
648KB

Download
memory/2524-98-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-101-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-123-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-107-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-110-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-120-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2524-117-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2720-66-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2720-65-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2720-69-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2980-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2980-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2980-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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