socks5systemz | 47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73

Analysis

max time kernel
144s
max time network
149s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 22:04

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General

Target

47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe
Size

5.6MB
MD5

852716a2d44e0122b5ce700105964253
SHA1

48fbbc7796850d5edb57f11378a67c10270a8d38
SHA256

47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73
SHA512

efdf7f5393a7532f6772b7e68a644b691256f69f3303d11022a39fa2e9dabc0fa70ad932713357836aed2d0e2d8a4fbd425d57fd82b4306141e4ba90f3267aad
SSDEEP

98304:qiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:/Rm1syxacY48eda2TMpQdZ9nc+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
behavioral1/memory/2312-124-0x0000000002DF0000-0x0000000002E94000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

Processes:

is-STJVB.tmpIsoBuster_1121.exeIsoBuster_1121.exe

pid	Process
1900	is-STJVB.tmp
2648	IsoBuster_1121.exe
2312	IsoBuster_1121.exe

Loads dropped DLL 10 IoCs

Processes:

47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exeis-STJVB.tmpIsoBuster_1121.exeIsoBuster_1121.exe

pid	Process
108	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe
1900	is-STJVB.tmp
1900	is-STJVB.tmp
1900	is-STJVB.tmp
1900	is-STJVB.tmp
2648	IsoBuster_1121.exe
2648	IsoBuster_1121.exe
1900	is-STJVB.tmp
2312	IsoBuster_1121.exe
2312	IsoBuster_1121.exe

Unexpected DNS network traffic destination 2 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description	ioc
Destination IP	51.159.66.125
Destination IP	217.23.6.51

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-STJVB.tmp

description	ioc	Process
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-5M7IQ.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-M12QT.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-UINBB.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-SEBKR.tmp	is-STJVB.tmp
File opened for modification	C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\is-SNID7.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-PVE0U.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-137DD.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-7UAEM.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-25P48.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-JPRQ2.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-COSP6.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-3T52F.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-5IJTR.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-IOVR6.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-3F5Q1.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-ASKPM.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-BCM7I.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-CG3T0.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-FDL8Q.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-O3N6Q.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-U1ERV.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-SKTDG.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-BPSPP.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-IOO8E.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-IIQ2C.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-58VLB.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\is-G6257.tmp	is-STJVB.tmp
File opened for modification	C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-AISMF.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-2TGGL.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Help\is-MTRNT.tmp	is-STJVB.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-THSNR.tmp	is-STJVB.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.exenet1.exeIsoBuster_1121.exe47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exeis-STJVB.tmpnet.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	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IsoBuster_1121.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-STJVB.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe

Runs net.exe

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exeis-STJVB.tmpnet.exe

description	pid	Process	procid_target
PID 108 wrote to memory of 1900	108	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe	31
PID 108 wrote to memory of 1900	108	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe	31
PID 108 wrote to memory of 1900	108	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe	31
PID 108 wrote to memory of 1900	108	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe	31
PID 108 wrote to memory of 1900	108	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe	31
PID 108 wrote to memory of 1900	108	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe	31
PID 108 wrote to memory of 1900	108	47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe	31
PID 1900 wrote to memory of 2812	1900	is-STJVB.tmp	32
PID 1900 wrote to memory of 2812	1900	is-STJVB.tmp	32
PID 1900 wrote to memory of 2812	1900	is-STJVB.tmp	32
PID 1900 wrote to memory of 2812	1900	is-STJVB.tmp	32
PID 1900 wrote to memory of 2812	1900	is-STJVB.tmp	32
PID 1900 wrote to memory of 2812	1900	is-STJVB.tmp	32
PID 1900 wrote to memory of 2812	1900	is-STJVB.tmp	32
PID 1900 wrote to memory of 2648	1900	is-STJVB.tmp	34
PID 1900 wrote to memory of 2648	1900	is-STJVB.tmp	34
PID 1900 wrote to memory of 2648	1900	is-STJVB.tmp	34
PID 1900 wrote to memory of 2648	1900	is-STJVB.tmp	34
PID 1900 wrote to memory of 2648	1900	is-STJVB.tmp	34
PID 1900 wrote to memory of 2648	1900	is-STJVB.tmp	34
PID 1900 wrote to memory of 2648	1900	is-STJVB.tmp	34
PID 2812 wrote to memory of 2696	2812	net.exe	35
PID 2812 wrote to memory of 2696	2812	net.exe	35
PID 2812 wrote to memory of 2696	2812	net.exe	35
PID 2812 wrote to memory of 2696	2812	net.exe	35
PID 2812 wrote to memory of 2696	2812	net.exe	35
PID 2812 wrote to memory of 2696	2812	net.exe	35
PID 2812 wrote to memory of 2696	2812	net.exe	35
PID 1900 wrote to memory of 2312	1900	is-STJVB.tmp	36
PID 1900 wrote to memory of 2312	1900	is-STJVB.tmp	36
PID 1900 wrote to memory of 2312	1900	is-STJVB.tmp	36
PID 1900 wrote to memory of 2312	1900	is-STJVB.tmp	36
PID 1900 wrote to memory of 2312	1900	is-STJVB.tmp	36
PID 1900 wrote to memory of 2312	1900	is-STJVB.tmp	36
PID 1900 wrote to memory of 2312	1900	is-STJVB.tmp	36

C:\Users\Admin\AppData\Local\Temp\47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe
"C:\Users\Admin\AppData\Local\Temp\47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:108
- C:\Users\Admin\AppData\Local\Temp\is-C2ANR.tmp\is-STJVB.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-C2ANR.tmp\is-STJVB.tmp" /SL4 $30150 "C:\Users\Admin\AppData\Local\Temp\47d7bfb8b5ca3cecd19311eb43623c7de17654efd54a7e06b5d610c0efb98a73.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:1900
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 2
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2812
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 2
      4⤵
      System Location Discovery: System Language Discovery
      PID:2696
- - 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
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2648
- - 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
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2312

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:\Users\Admin\AppData\Local\Temp\is-C2ANR.tmp\is-STJVB.tmp

Filesize
642KB

MD5
e57693101a63b1f934f462bc7a2ef093

SHA1
2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

SHA256
71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

SHA512
3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

Download Submit
\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe

Filesize
4.4MB

MD5
81bf17b6bc712eec07e481349afc3dbc

SHA1
eedecca191d3a6b1f16483714343fe1019d7fc62

SHA256
81baf334067384061f84fb8335cd811aa22984601ad103e3f575f0a5cb9a639b

SHA512
3aa53bfc176d2313e7a02c8f3511e1892adcacf02ee28135e5ae46b1224fdfaef6ddcba8b5f9b340c40c39d22b87d23468401df2c84ac57c57fdeabf2f302171

Download Submit
\Users\Admin\AppData\Local\Temp\is-I0PPB.tmp\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-I0PPB.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/108-0-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/108-2-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/108-103-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1900-101-0x0000000003D50000-0x00000000041BF000-memory.dmp

Filesize
4.4MB

Download
memory/1900-85-0x0000000003D50000-0x00000000041BF000-memory.dmp

Filesize
4.4MB

Download
memory/1900-104-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/2312-123-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-114-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-100-0x0000000000FF0000-0x000000000145F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-149-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-146-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-143-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-105-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-106-0x0000000000FF0000-0x000000000145F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-107-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-108-0x0000000000FF0000-0x000000000145F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-111-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-140-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-117-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-120-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-137-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-124-0x0000000002DF0000-0x0000000002E94000-memory.dmp

Filesize
656KB

Download
memory/2312-128-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-131-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2312-134-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2648-87-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2648-95-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2648-92-0x0000000000E80000-0x00000000012EF000-memory.dmp

Filesize
4.4MB

Download
memory/2648-91-0x0000000000E80000-0x00000000012EF000-memory.dmp

Filesize
4.4MB

Download
memory/2648-93-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download