socks5systemz | 372b81311186c476741ad97006e8e50533e7541d16a7188ae00139c26e321c35

General

Target

344ed7841ae17ad0d54c844e13cb5f65.exe
Size

3.5MB
MD5

344ed7841ae17ad0d54c844e13cb5f65
SHA1

056948fba0ee26a6774e19edc637e9447ed9a1b0
SHA256

372b81311186c476741ad97006e8e50533e7541d16a7188ae00139c26e321c35
SHA512

aeb11a7b4f500f8337c46cae5777297268e0d7ba66296e14b20b43f0edfc70e9bd39604cc10da71cca44dc9d67e3c47f3c9c675fed8de2014fc114708f744e77
SSDEEP

98304:NJ+a1qZVIAis6zBkjcfKQTuauUhyij80JxhMoXdkjtVok5:n+gq79f6acluqjnJxh/ejtVok5

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1460-77-0x0000000000A10000-0x0000000000AB0000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
3632	344ed7841ae17ad0d54c844e13cb5f65.tmp
1460	backupmaster35.exe

Loads dropped DLL 2 IoCs

pid	Process
3632	344ed7841ae17ad0d54c844e13cb5f65.tmp
1460	backupmaster35.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

System Location Discovery: System Language Discovery 1 TTPs 3 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	344ed7841ae17ad0d54c844e13cb5f65.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	344ed7841ae17ad0d54c844e13cb5f65.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	backupmaster35.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3632	344ed7841ae17ad0d54c844e13cb5f65.tmp
3632	344ed7841ae17ad0d54c844e13cb5f65.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3632	344ed7841ae17ad0d54c844e13cb5f65.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 3632	4592	344ed7841ae17ad0d54c844e13cb5f65.exe	88
PID 4592 wrote to memory of 3632	4592	344ed7841ae17ad0d54c844e13cb5f65.exe	88
PID 4592 wrote to memory of 3632	4592	344ed7841ae17ad0d54c844e13cb5f65.exe	88
PID 3632 wrote to memory of 1460	3632	344ed7841ae17ad0d54c844e13cb5f65.tmp	91
PID 3632 wrote to memory of 1460	3632	344ed7841ae17ad0d54c844e13cb5f65.tmp	91
PID 3632 wrote to memory of 1460	3632	344ed7841ae17ad0d54c844e13cb5f65.tmp	91

C:\Users\Admin\AppData\Local\Temp\344ed7841ae17ad0d54c844e13cb5f65.exe
"C:\Users\Admin\AppData\Local\Temp\344ed7841ae17ad0d54c844e13cb5f65.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Users\Admin\AppData\Local\Temp\is-L59NO.tmp\344ed7841ae17ad0d54c844e13cb5f65.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-L59NO.tmp\344ed7841ae17ad0d54c844e13cb5f65.tmp" /SL5="$401F8,3435195,54272,C:\Users\Admin\AppData\Local\Temp\344ed7841ae17ad0d54c844e13cb5f65.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:3632
- - C:\Users\Admin\AppData\Local\BackupMaster 3.0.0.35\backupmaster35.exe
    "C:\Users\Admin\AppData\Local\BackupMaster 3.0.0.35\backupmaster35.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1460

Network

MITRE ATT&CK Enterprise v16

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\BackupMaster 3.0.0.35\backupmaster35.exe

Filesize
2.9MB

MD5
a46647b545c35d1723143de7b5884b90

SHA1
71021422aca9790eccdcff766248a1b883166461

SHA256
f10f786a48eece758c984506d17f0d82fdab272b00d1e3d12a4b03a87509e658

SHA512
dad5e8bac39d3eca57acffa3bd79d227eacfdf7b7c28d8ee87e6869370488c4153561421dda31fc921ab79b7261de2a3f30a61ccae5d1b8fa77bd69d765bebcd

Download Submit
C:\Users\Admin\AppData\Local\BackupMaster 3.0.0.35\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-10A2O.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-L59NO.tmp\344ed7841ae17ad0d54c844e13cb5f65.tmp

Filesize
692KB

MD5
f8f5e8d8bf44a5e1a1d1d691dd643959

SHA1
044e34c927f609f5c88adcab54ea520c95f792f7

SHA256
167c075f46ae03e4815a04acac4a4bbf1d4985f55ea1542baeb36baa9ea5c24b

SHA512
d4c86b1a4cff94d5cd97f3cbc50be27b9ac161879b73c8800014993f635c8c645dc09082fbd466e5a0159e40e0bf3522a95d48f46ded31dbf06b83a27c013c89

Download Submit
memory/1460-56-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1460-90-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-110-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-45-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-46-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-50-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-106-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-102-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-53-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-55-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-98-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-59-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-63-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-67-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-71-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-75-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-77-0x0000000000A10000-0x0000000000AB0000-memory.dmp

Filesize
640KB

Download
memory/1460-82-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-86-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/1460-94-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/3632-13-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/3632-51-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4592-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4592-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4592-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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