socks5systemz | 475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879

General

Target

475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe
Size

4.6MB
MD5

a9d760f2620d19bb5fe8edda1aa4d116
SHA1

05c59220b734143f4de0f54c9abedb2ebc254cd9
SHA256

475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879
SHA512

d8c8cac1428bb4c9080a8e3b2301dfbce6d335c94015ebf3d0e1550a881a8d0ea1099e072075543a157c02d8a2552728f3dfb9b65fdecbcad0abce09b1b29334
SSDEEP

98304:mFmaH1iVeMcrS768NWYGD3gnQxiXReSjS5anVFmZ6k8ruHox:zAi06Osa3gO8PjzVBu8

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

erfqngk.ua

http://erfqngk.ua/search/?q=67e28dd86509f67a4206fe1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa45e8889b5e4fa9281ae978f171ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfe19c8e893

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2684-92-0x00000000025E0000-0x0000000002682000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmpvirtualsoundcard32.exevirtualsoundcard32.exe

pid process

1884 475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
2916 virtualsoundcard32.exe
2684 virtualsoundcard32.exe

pid	process
1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
2916	virtualsoundcard32.exe
2684	virtualsoundcard32.exe

Loads dropped DLL 5 IoCs

Processes:

475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp

pid	process
2304	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe
1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp

Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

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

Processes:

475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp

pid process

1884 475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp

description	pid	process	target process
PID 2304 wrote to memory of 1884	2304	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
PID 2304 wrote to memory of 1884	2304	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
PID 2304 wrote to memory of 1884	2304	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
PID 2304 wrote to memory of 1884	2304	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
PID 2304 wrote to memory of 1884	2304	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
PID 2304 wrote to memory of 1884	2304	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
PID 2304 wrote to memory of 1884	2304	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
PID 1884 wrote to memory of 2916	1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp	virtualsoundcard32.exe
PID 1884 wrote to memory of 2916	1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp	virtualsoundcard32.exe
PID 1884 wrote to memory of 2916	1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp	virtualsoundcard32.exe
PID 1884 wrote to memory of 2916	1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp	virtualsoundcard32.exe
PID 1884 wrote to memory of 2684	1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp	virtualsoundcard32.exe
PID 1884 wrote to memory of 2684	1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp	virtualsoundcard32.exe
PID 1884 wrote to memory of 2684	1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp	virtualsoundcard32.exe
PID 1884 wrote to memory of 2684	1884	475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp	virtualsoundcard32.exe

C:\Users\Admin\AppData\Local\Temp\475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe
"C:\Users\Admin\AppData\Local\Temp\475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2304

C:\Users\Admin\AppData\Local\Temp\is-646L9.tmp\475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
"C:\Users\Admin\AppData\Local\Temp\is-646L9.tmp\475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp" /SL5="$3014E,4620702,54272,C:\Users\Admin\AppData\Local\Temp\475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1884

C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -i
3⤵
- Executes dropped EXE
PID:2916

C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -s
3⤵
- Executes dropped EXE
PID:2684

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

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Downloads

\Users\Admin\AppData\Local\Temp\is-646L9.tmp\475966985e66aa28ccf498291d21a27ef878f19be7c5369ffdfe7882b27e0879.tmp
Filesize
680KB

MD5
6d75c2498ef0af9a91b71d0d81d1b95e

SHA1
1476ec8e947af9a397658bec20b17854042cc0c3

SHA256
468db6dd9e5c87c34d9cb7e56ddbfaf068bbe44436fa2cfc2ada8029051e4bee

SHA512
bdc9b460a463da60c019eda9dd40929a61e77081b699d6c3a4c05309280252f7493015cf463243ff9dd3e20ddd324db39a8697f312fabfea64c78aed9ddb5027

Download Submit
\Users\Admin\AppData\Local\Temp\is-JIMOL.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-JIMOL.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
Filesize
2.7MB

MD5
ccf7a457a075550b0a178419a1dafdb7

SHA1
7dd190b145f9252dc6282fcaae248d1963e4579a

SHA256
01b3d0920a1856e5e3f16b0a515f1d3a9ee8119e809e1a6bfe993b0ad8a012c0

SHA512
1a01e50294c6d16ae0206e05dda829099fa1f410f19fa3e61e79ca8fa65d84dc69d7a68f1b31c34f43be04cd925c92936e446e163792256261bb49cc1d321b1a

Download Submit
memory/1884-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1884-63-0x00000000033E0000-0x00000000036A1000-memory.dmp

Filesize
2.8MB

Download
memory/1884-78-0x00000000033E0000-0x00000000036A1000-memory.dmp

Filesize
2.8MB

Download
memory/1884-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2304-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2304-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2304-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2684-107-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-101-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-75-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-137-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-79-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-82-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-85-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-88-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-91-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-92-0x00000000025E0000-0x0000000002682000-memory.dmp

Filesize
648KB

Download
memory/2684-98-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-71-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-104-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-132-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-110-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-113-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-117-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-120-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-123-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-126-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2684-129-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2916-65-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download
memory/2916-69-0x0000000000400000-0x00000000006C1000-memory.dmp

Filesize
2.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads