socks5systemz | 5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8

General

Target

5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe
Size

5.6MB
MD5

fa7c69052f7fda90b7d59b84e6ebf500
SHA1

4241aa75db43fe42c1737b915a0af9143cdc46d0
SHA256

5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8
SHA512

c19de89687b9426c6932497f2934b04c823881223cc27dfd70fb55e49e0eebbc7ae109b943908d981b7b67d36ed20ba3a9bec1dc49a7558126cc920c7aed528b
SSDEEP

98304:yiRmxZFsM4kxzDcT+GcY437KvDwEHuujlsaSzsC0p43MpQdZ9nc+fsCb+oSBAON6:3Rm1syxacY48eda2TMpQdZ9nc+fyhNjG

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

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/1036-127-0x0000000002EC0000-0x0000000002F64000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz
Executes dropped EXE 3 IoCs

Processes:

is-M09BR.tmpIsoBuster_1121.exeIsoBuster_1121.exe

pid process

2836 is-M09BR.tmp
2020 IsoBuster_1121.exe
1036 IsoBuster_1121.exe

pid	process
2836	is-M09BR.tmp
2020	IsoBuster_1121.exe
1036	IsoBuster_1121.exe

Loads dropped DLL 10 IoCs

Processes:

5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exeis-M09BR.tmpIsoBuster_1121.exeIsoBuster_1121.exe

pid	process
2780	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe
2836	is-M09BR.tmp
2836	is-M09BR.tmp
2836	is-M09BR.tmp
2836	is-M09BR.tmp
2020	IsoBuster_1121.exe
2020	IsoBuster_1121.exe
2836	is-M09BR.tmp
1036	IsoBuster_1121.exe
1036	IsoBuster_1121.exe

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-M09BR.tmp

description	ioc	process
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-IAB8M.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-TNKFN.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-IC077.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-9IHGU.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-QQB1H.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-J8ODH.tmp	is-M09BR.tmp
File opened for modification	C:\Program Files (x86)\Smart Projects\IsoBuster\IsoBuster_1121.exe	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-D3U82.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-8PH09.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-UUKC3.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-JA9Q3.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-10AIU.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-2KQ1K.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-8Q7HJ.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-UHOMH.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-ABAN4.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\is-L8BUI.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-PQRNT.tmp	is-M09BR.tmp
File opened for modification	C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\unins000.dat	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-GCCDJ.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-PV0VF.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-UUEBO.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Online\is-ABLSA.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-0CK8C.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-ANLUL.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\is-12G95.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-OF8GE.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-TQ8J2.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-MA5CE.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-ODNSG.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Lang\is-15TH5.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Help\is-RNFJP.tmp	is-M09BR.tmp
File created	C:\Program Files (x86)\Smart Projects\IsoBuster\Plugins\is-HCT8E.tmp	is-M09BR.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.exe5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exeis-M09BR.tmpnet.exeIsoBuster_1121.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	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-M09BR.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IsoBuster_1121.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exeis-M09BR.tmpnet.exe

description	pid	process	target process
PID 2780 wrote to memory of 2836	2780	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe	is-M09BR.tmp
PID 2780 wrote to memory of 2836	2780	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe	is-M09BR.tmp
PID 2780 wrote to memory of 2836	2780	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe	is-M09BR.tmp
PID 2780 wrote to memory of 2836	2780	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe	is-M09BR.tmp
PID 2780 wrote to memory of 2836	2780	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe	is-M09BR.tmp
PID 2780 wrote to memory of 2836	2780	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe	is-M09BR.tmp
PID 2780 wrote to memory of 2836	2780	5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe	is-M09BR.tmp
PID 2836 wrote to memory of 3012	2836	is-M09BR.tmp	net.exe
PID 2836 wrote to memory of 3012	2836	is-M09BR.tmp	net.exe
PID 2836 wrote to memory of 3012	2836	is-M09BR.tmp	net.exe
PID 2836 wrote to memory of 3012	2836	is-M09BR.tmp	net.exe
PID 2836 wrote to memory of 3012	2836	is-M09BR.tmp	net.exe
PID 2836 wrote to memory of 3012	2836	is-M09BR.tmp	net.exe
PID 2836 wrote to memory of 3012	2836	is-M09BR.tmp	net.exe
PID 2836 wrote to memory of 2020	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 2020	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 2020	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 2020	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 2020	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 2020	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 2020	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 3012 wrote to memory of 2124	3012	net.exe	net1.exe
PID 3012 wrote to memory of 2124	3012	net.exe	net1.exe
PID 3012 wrote to memory of 2124	3012	net.exe	net1.exe
PID 3012 wrote to memory of 2124	3012	net.exe	net1.exe
PID 3012 wrote to memory of 2124	3012	net.exe	net1.exe
PID 3012 wrote to memory of 2124	3012	net.exe	net1.exe
PID 3012 wrote to memory of 2124	3012	net.exe	net1.exe
PID 2836 wrote to memory of 1036	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 1036	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 1036	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 1036	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 1036	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 1036	2836	is-M09BR.tmp	IsoBuster_1121.exe
PID 2836 wrote to memory of 1036	2836	is-M09BR.tmp	IsoBuster_1121.exe

C:\Users\Admin\AppData\Local\Temp\5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe
"C:\Users\Admin\AppData\Local\Temp\5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Users\Admin\AppData\Local\Temp\is-UHQPK.tmp\is-M09BR.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-UHQPK.tmp\is-M09BR.tmp" /SL4 $400E2 "C:\Users\Admin\AppData\Local\Temp\5198570f22aacac198a1e53a57687a23dd36365c96de343fae21897ebb9f77f8N.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:2836
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 2
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3012
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 2
      4⤵
      System Location Discovery: System Language Discovery
      PID:2124
- - 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:2020
- - 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:1036

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\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-43H31.tmp\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-43H31.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-UHQPK.tmp\is-M09BR.tmp

Filesize
642KB

MD5
e57693101a63b1f934f462bc7a2ef093

SHA1
2748ea8c66b980f14c9ce36c1c3061e690cf3ce7

SHA256
71267ff94c9fc72cbffaeed3bc2f33cef1eeb1887c29c574d7f26595d1a6235f

SHA512
3dcda686a85b19a9c7b4c96d132e90ed43c7df13ce9456beb2b88c278d8068cc3abcbfe25b1607c7b8281d276efb24809730f352927b326254f3208cbdf54a3e

Download Submit
memory/1036-127-0x0000000002EC0000-0x0000000002F64000-memory.dmp

Filesize
656KB

Download
memory/1036-103-0x0000000000DC0000-0x000000000122F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-140-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-137-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-134-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-131-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-111-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-126-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-101-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-143-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-102-0x0000000000DC0000-0x000000000122F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-123-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-120-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-117-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-114-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-109-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/1036-110-0x0000000000DC0000-0x000000000122F000-memory.dmp

Filesize
4.4MB

Download
memory/2020-92-0x0000000000FB0000-0x000000000141F000-memory.dmp

Filesize
4.4MB

Download
memory/2020-96-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2020-93-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2020-91-0x0000000000FB0000-0x000000000141F000-memory.dmp

Filesize
4.4MB

Download
memory/2020-90-0x0000000000400000-0x000000000086F000-memory.dmp

Filesize
4.4MB

Download
memory/2780-106-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2780-2-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/2780-0-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2836-108-0x0000000003E90000-0x00000000042FF000-memory.dmp

Filesize
4.4MB

Download
memory/2836-107-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/2836-105-0x0000000003E90000-0x00000000042FF000-memory.dmp

Filesize
4.4MB

Download
memory/2836-85-0x0000000003E90000-0x00000000042FF000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads