socks5systemz | 88bd127745be4d9bca9c0bb46414738bdea2b81a68dac93a08ff2aaa9ae3d012

General

Target

9bd38aac39677166ad695345e85a0103.exe
Size

3.1MB
MD5

9bd38aac39677166ad695345e85a0103
SHA1

3b06ee6b63f175d781a77178f574fc22a447ebc2
SHA256

88bd127745be4d9bca9c0bb46414738bdea2b81a68dac93a08ff2aaa9ae3d012
SHA512

34555541638bdf874c4ef206efe4f81eccb8224d2321f1690aef42e0dcc7341f5c9c65c5361dcbe3d88a49282181d4cb74ef29329401f1ab8bb52538b126ee09
SSDEEP

98304:35YZn5uErdKA9JliWOGx3JlAsqrFy05wUwahTFdz:pYd5/8QsWrxHAjxy0Kihf

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/816-74-0x0000000000920000-0x00000000009C0000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
1876	9bd38aac39677166ad695345e85a0103.tmp
816	listfilenames312.exe

Loads dropped DLL 2 IoCs

pid	Process
1876	9bd38aac39677166ad695345e85a0103.tmp
816	listfilenames312.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	listfilenames312.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9bd38aac39677166ad695345e85a0103.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9bd38aac39677166ad695345e85a0103.tmp

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1876	9bd38aac39677166ad695345e85a0103.tmp
1876	9bd38aac39677166ad695345e85a0103.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1876	9bd38aac39677166ad695345e85a0103.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5984 wrote to memory of 1876	5984	9bd38aac39677166ad695345e85a0103.exe	86
PID 5984 wrote to memory of 1876	5984	9bd38aac39677166ad695345e85a0103.exe	86
PID 5984 wrote to memory of 1876	5984	9bd38aac39677166ad695345e85a0103.exe	86
PID 1876 wrote to memory of 816	1876	9bd38aac39677166ad695345e85a0103.tmp	90
PID 1876 wrote to memory of 816	1876	9bd38aac39677166ad695345e85a0103.tmp	90
PID 1876 wrote to memory of 816	1876	9bd38aac39677166ad695345e85a0103.tmp	90

C:\Users\Admin\AppData\Local\Temp\9bd38aac39677166ad695345e85a0103.exe
"C:\Users\Admin\AppData\Local\Temp\9bd38aac39677166ad695345e85a0103.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5984
- C:\Users\Admin\AppData\Local\Temp\is-MJR33.tmp\9bd38aac39677166ad695345e85a0103.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-MJR33.tmp\9bd38aac39677166ad695345e85a0103.tmp" /SL5="$401F6,3021014,56832,C:\Users\Admin\AppData\Local\Temp\9bd38aac39677166ad695345e85a0103.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:1876
- - C:\Users\Admin\AppData\Local\List File Names 3.1.2\listfilenames312.exe
    "C:\Users\Admin\AppData\Local\List File Names 3.1.2\listfilenames312.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:816

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\List File Names 3.1.2\listfilenames312.exe

Filesize
2.2MB

MD5
766cd34edf17be048891ff75b2595d83

SHA1
25c67a41121236beb69d42754a17a2abb0015607

SHA256
9fc45f75f0de9b0e2e894637a48de297a70dbeb010ae35bed0d43d3ca5caf1e7

SHA512
308584ffa761c370cb0d3cb4178f874acaa62b7071aca19670776799a9c9892d0b9c3bf39602c1093853ffb0eed51eb14ae7a0f80211abd798fa36531fb8bc12

Download Submit
C:\Users\Admin\AppData\Local\List File Names 3.1.2\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-2AJ62.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MJR33.tmp\9bd38aac39677166ad695345e85a0103.tmp

Filesize
694KB

MD5
8b60a442d43073c7342b057d9f1ec4a3

SHA1
6498dca784ab3c7677d9246a1897bd89b9806b16

SHA256
03b01e6d0cdf339e10611a5cb0e16f46fd9c11bc43aa879dd1f0f1e8b9c9dda8

SHA512
68136c7c9f79f0c202abe2dbbf2ac003fc155802e858da013d21ee90529ef21512565da80bb4bfc80cbd0d1098711c64b52d90333b63a9d5621ec0cf33f0b0aa

Download Submit
memory/816-54-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/816-88-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-118-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-43-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-44-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-48-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-110-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-100-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-52-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-53-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-96-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-57-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-61-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-65-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-69-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-73-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-74-0x0000000000920000-0x00000000009C0000-memory.dmp

Filesize
640KB

Download
memory/816-80-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-84-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/816-92-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/1876-6-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1876-49-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/5984-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/5984-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5984-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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