socks5systemz | a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693

General

Target

a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe
Size

4.6MB
MD5

4173debbc3d407dca3905c212ab537f2
SHA1

807cd0f7e7337545ecde2a1dec4fd9ad6b31ad7a
SHA256

a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693
SHA512

884581348592d891c95e916481d5e2b2fe1aeef7fd55b25acf2010bf542c7f3e6f15e7be6ec1f2813e9a4dc0cbc853c9c0beca2c13b0d6bc5d1e8a2a6827d57d
SSDEEP

98304:mTMDgLaCF/V6GoPhbZQ0sdYJi4LXyrk/BAqZ0pyrXFtbrKeDYSLdCu9zlp:kMDEaG/V6PPhb5sGJDLCrkCXSFlrKUYy

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bwdfprf.com

itaddss.info

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2544-92-0x00000000024F0000-0x0000000002592000-memory.dmp	family_socks5systemz

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

Processes:

a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmpvirtualsoundcard.exevirtualsoundcard.exe

pid process

2392 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
2628 virtualsoundcard.exe
2544 virtualsoundcard.exe

pid	process
2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
2628	virtualsoundcard.exe
2544	virtualsoundcard.exe

Loads dropped DLL 5 IoCs

Processes:

a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exea408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp

pid	process
2220	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe
2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp

Unexpected DNS network traffic destination 13 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
Destination IP	141.98.234.31
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	152.89.198.214
Destination IP	152.89.198.214
Destination IP	141.98.234.31
Destination IP	141.98.234.31
Destination IP	45.155.250.90
Destination IP	81.31.197.38
Destination IP	152.89.198.214
Destination IP	45.155.250.90
Destination IP	81.31.197.38

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:

a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp

pid process

2392 a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp

pid	process
2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exea408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp

description	pid	process	target process
PID 2220 wrote to memory of 2392	2220	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
PID 2220 wrote to memory of 2392	2220	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
PID 2220 wrote to memory of 2392	2220	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
PID 2220 wrote to memory of 2392	2220	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
PID 2220 wrote to memory of 2392	2220	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
PID 2220 wrote to memory of 2392	2220	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
PID 2220 wrote to memory of 2392	2220	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
PID 2392 wrote to memory of 2628	2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp	virtualsoundcard.exe
PID 2392 wrote to memory of 2628	2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp	virtualsoundcard.exe
PID 2392 wrote to memory of 2628	2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp	virtualsoundcard.exe
PID 2392 wrote to memory of 2628	2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp	virtualsoundcard.exe
PID 2392 wrote to memory of 2544	2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp	virtualsoundcard.exe
PID 2392 wrote to memory of 2544	2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp	virtualsoundcard.exe
PID 2392 wrote to memory of 2544	2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp	virtualsoundcard.exe
PID 2392 wrote to memory of 2544	2392	a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp	virtualsoundcard.exe

C:\Users\Admin\AppData\Local\Temp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe
"C:\Users\Admin\AppData\Local\Temp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220

C:\Users\Admin\AppData\Local\Temp\is-7TJ0T.tmp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
"C:\Users\Admin\AppData\Local\Temp\is-7TJ0T.tmp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp" /SL5="$400F8,4585671,54272,C:\Users\Admin\AppData\Local\Temp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2392

C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -i
3⤵
- Executes dropped EXE
PID:2628

C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -s
3⤵
- Executes dropped EXE
PID:2544

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-7TJ0T.tmp\a408e2bfa6521362525065c4170d314d83ffddc4ed68514ac01999e61a1dd693.tmp
Filesize
680KB

MD5
53a94211658a6bbf3d3a695470f940a6

SHA1
a9909ddfc97dee691e9d60b1257d61a3c1ef4e07

SHA256
d4928c3cacf826943bb44385aac5fb52e6ac69054f31a463df266baf9aa26d01

SHA512
d9c916961abcce8f05089df9cb6310c930aaa29266bfaf378a4dd0c9180ba9186a81393c662ba2a3b1a4da587379d68d532250c1a8d216d44dd532aaf178b402

Download Submit
\Users\Admin\AppData\Local\Temp\is-CF523.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-CF523.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe
Filesize
2.6MB

MD5
a0ac562bedc60906db18a7457c4a3e33

SHA1
f9e83a91e0c8609a355bafa25c88a0ae30107fed

SHA256
728d3595972daf3b92bd052193a13a079d0862604c6a88fb3acd739cf08ec38a

SHA512
ccaa43278a250cc6ce03d04344ebd57e928d99e93b83a938eeba65c25a7255de5cadd51bc4d593214a2232c214a47a7c1a0e0ca56cb398e0d74c886470650414

Download Submit
memory/2220-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2220-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2220-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2392-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2392-64-0x0000000003280000-0x0000000003524000-memory.dmp

Filesize
2.6MB

Download
memory/2392-79-0x0000000003280000-0x0000000003524000-memory.dmp

Filesize
2.6MB

Download
memory/2392-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2544-104-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-98-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-134-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-75-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-78-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-131-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-82-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-85-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-88-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-91-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-92-0x00000000024F0000-0x0000000002592000-memory.dmp

Filesize
648KB

Download
memory/2544-71-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-101-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-128-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-107-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-110-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-113-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-116-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-119-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-122-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2544-125-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2628-65-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2628-66-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download
memory/2628-69-0x0000000000400000-0x00000000006A4000-memory.dmp

Filesize
2.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads