socks5systemz | c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761a

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-11-2024 00:45

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General

Target

c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exe
Size

5.6MB
MD5

a9a597b36844c087ac8800ba1ab024e0
SHA1

985a6f2adf49f91411eebf2168a772f9893536c2
SHA256

c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761a
SHA512

61e383829db284083a56f2831f2ad980a1e96ab695dba64b93763291e56b5f37285bdcb89626739a9b9b0272968a9fd66e398f42116960146441542d00b4ea41
SSDEEP

98304:7iRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:eRm1syxacY48eda2TMpQdZ9nc+fyhNjG

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

51.159.66.125

217.23.6.51

151.80.38.159

217.23.9.168

37.187.122.227

Attributes

rc4_key
heyfg645fdhwi

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4916-110-0x0000000000BF0000-0x0000000000C94000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

Processes:

is-MF8LM.tmpIsoBuster_1121.exeIsoBuster_1121.exe

pid	Process
3120	is-MF8LM.tmp
440	IsoBuster_1121.exe
4916	IsoBuster_1121.exe

Loads dropped DLL 1 IoCs

Processes:

is-MF8LM.tmp

pid	Process
3120	is-MF8LM.tmp

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

Drops file in Program Files directory 34 IoCs

Processes:

is-MF8LM.tmp

description	ioc	Process
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-8QC09.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-EIOTQ.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-GDNAF.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-CAGMS.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\is-RA631.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-NL1BQ.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-3HSS5.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-TR4OC.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Help\is-NVKBI.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-RO9CA.tmp	is-MF8LM.tmp
File opened for modification	C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-J2CJE.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-42FSJ.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-TSF7R.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-OH920.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-P12BO.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-E3N6E.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\is-3QD87.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-H8O0N.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-J76M8.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-SM5QL.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-5387U.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-U2V4F.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-ILSD8.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-0GSTL.tmp	is-MF8LM.tmp
File opened for modification	C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-M433F.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-MK0RR.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-AMM09.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-8BQL2.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-9SUV6.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-02570.tmp	is-MF8LM.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-J2JA3.tmp	is-MF8LM.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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:

IsoBuster_1121.exec144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exeis-MF8LM.tmpIsoBuster_1121.exenet.exenet1.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IsoBuster_1121.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-MF8LM.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IsoBuster_1121.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 use of WriteProcessMemory 15 IoCs

Processes:

c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exeis-MF8LM.tmpnet.exe

description	pid	Process	procid_target
PID 4992 wrote to memory of 3120	4992	c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exe	84
PID 4992 wrote to memory of 3120	4992	c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exe	84
PID 4992 wrote to memory of 3120	4992	c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exe	84
PID 3120 wrote to memory of 2808	3120	is-MF8LM.tmp	87
PID 3120 wrote to memory of 2808	3120	is-MF8LM.tmp	87
PID 3120 wrote to memory of 2808	3120	is-MF8LM.tmp	87
PID 3120 wrote to memory of 440	3120	is-MF8LM.tmp	89
PID 3120 wrote to memory of 440	3120	is-MF8LM.tmp	89
PID 3120 wrote to memory of 440	3120	is-MF8LM.tmp	89
PID 2808 wrote to memory of 3024	2808	net.exe	90
PID 2808 wrote to memory of 3024	2808	net.exe	90
PID 2808 wrote to memory of 3024	2808	net.exe	90
PID 3120 wrote to memory of 4916	3120	is-MF8LM.tmp	91
PID 3120 wrote to memory of 4916	3120	is-MF8LM.tmp	91
PID 3120 wrote to memory of 4916	3120	is-MF8LM.tmp	91

C:\Users\Admin\AppData\Local\Temp\c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exe
"C:\Users\Admin\AppData\Local\Temp\c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Users\Admin\AppData\Local\Temp\is-DC6OL.tmp\is-MF8LM.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-DC6OL.tmp\is-MF8LM.tmp" /SL4 $801E0 "C:\Users\Admin\AppData\Local\Temp\c144d7a9c370793b8a486c76692f219d14136e65366ae86c93a49c341831761aN.exe" 5597940 141824
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3120
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 2
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2808
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 2
      4⤵
      System Location Discovery: System Language Discovery
      PID:3024
- - C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe
    "C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:440
- - C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe
    "C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe" -s
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

Filesize
4.4MB

MD5
81bf17b6bc712eec07e481349afc3dbc

SHA1
eedecca191d3a6b1f16483714343fe1019d7fc62

SHA256
81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

SHA512
3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8DF7F.tmp\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DC6OL.tmp\is-MF8LM.tmp

Filesize
642KB

MD5
e57693101a63b1f934f462bc7a2ef093

SHA1
2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

SHA256
71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

SHA512
3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

Download Submit
memory/440-87-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/440-82-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/440-84-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/3120-91-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/3120-7-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/4916-94-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-110-0x0000000000BF0000-0x0000000000C94000-memory.dmp

Filesize
656KB

Download
memory/4916-126-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-123-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-120-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-97-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-100-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-103-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-106-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-109-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-89-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-114-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4916-117-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/4992-2-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/4992-92-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4992-0-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download