socks5systemz | ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f

General

Target

ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exe
Size

6.4MB
MD5

562f7eefeac2d063154f4c1fb0a2dc95
SHA1

ae99e5043eee8245a86c0dddbe27d8455d3c1b30
SHA256

ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f
SHA512

163a18273428605e304df0f350176a7d61480183ba3719090f7f609b0158e07486130374da5d36159232b217c69f3935f04d92754d0fcd2fc98fb149c0e7d7c8
SSDEEP

98304:PX4WmM79iSbYmvXC7+8VAj/95pBe7KDAkHT3cKLWL+qgfUeyazx11:vFmuYmWAb95e78Akz3cWWLQUeyaR

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3208-99-0x0000000000A70000-0x0000000000B12000-memory.dmp	family_socks5systemz
behavioral2/memory/3208-131-0x0000000000A70000-0x0000000000B12000-memory.dmp	family_socks5systemz
behavioral2/memory/3208-132-0x0000000000A70000-0x0000000000B12000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz
Executes dropped EXE 2 IoCs

Processes:

ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmpavidenta32.exe

pid process

2228 ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
3208 avidenta32.exe
Loads dropped DLL 2 IoCs

Processes:

ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmpavidenta32.exe

pid process

2228 ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
3208 avidenta32.exe
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 45.155.250.90
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

description	ioc
Destination IP	45.155.250.90

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

Processes:

ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exeef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmpavidenta32.exenet.exenet1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	avidenta32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp

pid	process
2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp

pid process

2228 ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exeef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmpnet.exe

description	pid	process	target process
PID 3144 wrote to memory of 2228	3144	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exe	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
PID 3144 wrote to memory of 2228	3144	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exe	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
PID 3144 wrote to memory of 2228	3144	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exe	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
PID 2228 wrote to memory of 2300	2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp	net.exe
PID 2228 wrote to memory of 2300	2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp	net.exe
PID 2228 wrote to memory of 2300	2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp	net.exe
PID 2228 wrote to memory of 3208	2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp	avidenta32.exe
PID 2228 wrote to memory of 3208	2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp	avidenta32.exe
PID 2228 wrote to memory of 3208	2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp	avidenta32.exe
PID 2300 wrote to memory of 848	2300	net.exe	net1.exe
PID 2300 wrote to memory of 848	2300	net.exe	net1.exe
PID 2300 wrote to memory of 848	2300	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exe
"C:\Users\Admin\AppData\Local\Temp\ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3144
- C:\Users\Admin\AppData\Local\Temp\is-PDGRJ.tmp\ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-PDGRJ.tmp\ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp" /SL5="$502B8,5991358,721408,C:\Users\Admin\AppData\Local\Temp\ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.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:2228
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause avidenta_11133
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2300
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause avidenta_11133
      4⤵
      System Location Discovery: System Language Discovery
      PID:848
- - C:\Users\Admin\AppData\Local\Avidenta 3.3.3\avidenta32.exe
    "C:\Users\Admin\AppData\Local\Avidenta 3.3.3\avidenta32.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3208

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\Avidenta 3.3.3\avidenta32.exe

Filesize
3.6MB

MD5
301420f50201b077ee83df717d15eaad

SHA1
0e64f6ef6ac58b1a20745a52ce374505efd6e5b3

SHA256
a07439d29b37374b72b872d9c680a1f300943de1590c69897adf9d27a53f1cc8

SHA512
21d4ea2c8411c596c18c956e26ea79f59a4dbb54c0f3b1d06d17b247d997d97f2b6b5dd656631d158cd7735822e929dca4ad694527def61d8d846ee922f0dc02

Download Submit
C:\Users\Admin\AppData\Local\Avidenta 3.3.3\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-702NH.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-PDGRJ.tmp\ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp

Filesize
2.4MB

MD5
438f4076e92d3c839405bab4652fe2ce

SHA1
046567cf90b9e87f4b3913030e1acfc0a4341279

SHA256
ad1772bd4f07c11a626de2f257d2cc44b63ff9150be9386512840a2381e97b7e

SHA512
44985fe1773cc9d1a4ee5ed0e5bcac058c0cd064d3a1e782d9c424efeb89185528e19a177ecfafa173b76b049301d5ff95dafc0b36715a0847eec3f6b4e1506b

Download Submit
memory/2228-74-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/2228-6-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/3144-2-0x0000000000401000-0x00000000004A9000-memory.dmp

Filesize
672KB

Download
memory/3144-0-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3144-75-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3208-86-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-101-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-73-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-78-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/3208-77-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-79-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-82-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-69-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-90-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-94-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-99-0x0000000000A70000-0x0000000000B12000-memory.dmp

Filesize
648KB

Download
memory/3208-72-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-107-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-109-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-112-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-113-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-117-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-121-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-125-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-129-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-131-0x0000000000A70000-0x0000000000B12000-memory.dmp

Filesize
648KB

Download
memory/3208-132-0x0000000000A70000-0x0000000000B12000-memory.dmp

Filesize
648KB

Download
memory/3208-136-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3208-140-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download

pid	process
2228	ef3b99ac60c21512e5b05101a50004f0be3f81e7ab133ab5e47124d18de1384f.tmp
3208	avidenta32.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads