socks5systemz | a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422

General

Target

a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe
Size

5.9MB
MD5

60d7980af1b3f08c8dda162969f01213
SHA1

79fa38e5be6db3939432929a30b63dffc820405d
SHA256

a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422
SHA512

10ad1a434d7796942f542b024fc6286265b0232d9b8d7893347405d6b540112c83083da9681d4a663a044d1fc1388f0b1e71483dc8eb162c3823fb3bab7350de
SSDEEP

98304:NK3LCyoaF8ZJmnHnMyzKnCbA1SFaYWaYMrwKoknN4KbxjYjOX0jJln7VB8dmp:03vD8Z4nHnMyzI+TAYWTNknWKblTEjHx

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2604-105-0x00000000033A0000-0x0000000003442000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp
2604	screenstudio3.exe

Loads dropped DLL 6 IoCs

pid	Process
2244	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe
332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp
332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp
332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp
332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp
2604	screenstudio3.exe

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

System Location Discovery: System Language Discovery 1 TTPs 5 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	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	screenstudio3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp
332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 332	2244	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe	30
PID 2244 wrote to memory of 332	2244	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe	30
PID 2244 wrote to memory of 332	2244	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe	30
PID 2244 wrote to memory of 332	2244	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe	30
PID 2244 wrote to memory of 332	2244	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe	30
PID 2244 wrote to memory of 332	2244	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe	30
PID 2244 wrote to memory of 332	2244	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe	30
PID 332 wrote to memory of 2944	332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp	31
PID 332 wrote to memory of 2944	332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp	31
PID 332 wrote to memory of 2944	332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp	31
PID 332 wrote to memory of 2944	332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp	31
PID 332 wrote to memory of 2604	332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp	33
PID 332 wrote to memory of 2604	332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp	33
PID 332 wrote to memory of 2604	332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp	33
PID 332 wrote to memory of 2604	332	a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp	33
PID 2944 wrote to memory of 2940	2944	net.exe	34
PID 2944 wrote to memory of 2940	2944	net.exe	34
PID 2944 wrote to memory of 2940	2944	net.exe	34
PID 2944 wrote to memory of 2940	2944	net.exe	34

C:\Users\Admin\AppData\Local\Temp\a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe
"C:\Users\Admin\AppData\Local\Temp\a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\is-NEP60.tmp\a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NEP60.tmp\a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp" /SL5="$30146,5968582,54272,C:\Users\Admin\AppData\Local\Temp\a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:332
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause screenstudio_11174
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2944
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause screenstudio_11174
      4⤵
      System Location Discovery: System Language Discovery
      PID:2940
- - C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe
    "C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2604

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 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

C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe

Filesize
6.7MB

MD5
a3e44d24315c7731d99f0b26dd1eac96

SHA1
9dfc9cc4b1ecb664863527bdf56a6089fe2da8f8

SHA256
338bb6940b8f97b46611bd254b572d81569072f5f26d7351a1d5519c662b68fe

SHA512
3f8b261f48faa592f3f04566b19e63f9ff81b5a958c988df93e296aef29652a936e83972d576a8b06cfd06a52b0c6c1ecf86a3ac0690686428d99fd33fe590ba

Download Submit
C:\Users\Admin\AppData\Local\Screen Studio 1.42\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-NEP60.tmp\a6cfc86b446f4c920cc6dfc20eb0b77179a5894c56cee23dce33a0d1558d5422.tmp

Filesize
692KB

MD5
4d3a2bb8d7a7dfcfeee20f95757d29e4

SHA1
4ca66ee00b950e6c45c09263b0e451039c572e96

SHA256
88f7d0bc0c2cea9ac3ad806480310c9deae405ba505f6a19f9591115b6cbc57d

SHA512
920d30524b4e1bf7cb3556a578459be4e9122e8c8716e34310fd70ae1deded50bad8bf7a03a46db46557b2e5500a523511a0bb9ddacf2dd966016e98a7cc6e74

Download Submit
memory/332-79-0x00000000035C0000-0x0000000003C83000-memory.dmp

Filesize
6.8MB

Download
memory/332-15-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/332-71-0x00000000035C0000-0x0000000003C83000-memory.dmp

Filesize
6.8MB

Download
memory/332-78-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2244-80-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2244-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2244-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2604-99-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-103-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-72-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-83-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/2604-84-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-87-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-91-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-95-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-74-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-82-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-105-0x00000000033A0000-0x0000000003442000-memory.dmp

Filesize
648KB

Download
memory/2604-111-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-115-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-119-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-123-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-127-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-131-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-136-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download
memory/2604-140-0x0000000000400000-0x0000000000AC3000-memory.dmp

Filesize
6.8MB

Download

Analysis

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