socks5systemz | f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb

General

Target

f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe
Size

5.3MB
MD5

6f2f70353f95755bd4328197aa2bda5e
SHA1

f853ef376c36f8087d863a8088b2abf8477ec407
SHA256

f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb
SHA512

6e0629016630e24f1b91e80bdf62c78bbc913b7870cf7d1f0e2a2ca318d3cd61e4594ddb6c7db3d23fd0bd014e094eef3f255b24bc983b252de0bb349938847a
SSDEEP

98304:CbnMUvfMRKeYAN1RMXkxJ8QdaxSSxF3d1VTjh25E3q2knF3Qx3xw:WfkYy10ySQduDFt1VTjQ5Cq2klQrw

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/3984-85-0x0000000000AF0000-0x0000000000B92000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp
464	3gpvideoconverter32.exe
3984	3gpvideoconverter32.exe

Loads dropped DLL 1 IoCs

pid	Process
1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp

Unexpected DNS network traffic destination 1 IoCs

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

description	ioc
Destination IP	91.211.247.248

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

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 1800	2984	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe	81
PID 2984 wrote to memory of 1800	2984	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe	81
PID 2984 wrote to memory of 1800	2984	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe	81
PID 1800 wrote to memory of 464	1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp	82
PID 1800 wrote to memory of 464	1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp	82
PID 1800 wrote to memory of 464	1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp	82
PID 1800 wrote to memory of 3984	1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp	83
PID 1800 wrote to memory of 3984	1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp	83
PID 1800 wrote to memory of 3984	1800	f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp	83

C:\Users\Admin\AppData\Local\Temp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe
"C:\Users\Admin\AppData\Local\Temp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Users\Admin\AppData\Local\Temp\is-VJ661.tmp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-VJ661.tmp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp" /SL5="$A0056,5319478,54272,C:\Users\Admin\AppData\Local\Temp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1800
- - C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe
    "C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:464
- - C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe
    "C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3984

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe

Filesize
4.9MB

MD5
8160ddf42be871844d2ecd9c6100ee94

SHA1
e03914c7f5e4f463fd4fbd94886932f8b7d0f131

SHA256
3b5580702176b4e7b078063f8171838e731ecdec7bbbe36c15be391e77fa6195

SHA512
63e3ffcd72ff8256876210dcda93224bfe59f6e4f8a7cd902541b0c53d43c8664bdfa3f82496be1929e2469755469e77608fc06de4a3cbbf30a164ea9b57d941

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-RGAL2.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VJ661.tmp\f5fe1a8a8984ed4014b52a6288529bc32ed9bd1d4dcb903bdcb4a964902e63eb.tmp

Filesize
680KB

MD5
db83d289dcc1ffc4fa03a45e1d2b4ef0

SHA1
d17603a722a4ec3fc1a1355d37f4d67f45d53f9b

SHA256
2b896eb3adf00308929d9afbb0ad1a77cb0ac007422a325ae56a2034f3e87b4d

SHA512
0807bb559572d023d2bff2a18b168f78949dec230e702a2d581b5a1f161277e43735261f1a205cad6fd35592d1be5f18136ea8f52a2e01a4949a58f390034813

Download Submit
memory/464-60-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/464-61-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/464-63-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/464-65-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/1800-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1800-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2984-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2984-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2984-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3984-70-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-73-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-76-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-79-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-82-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-85-0x0000000000AF0000-0x0000000000B92000-memory.dmp

Filesize
648KB

Download
memory/3984-89-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-92-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-95-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-98-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-101-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-104-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-107-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-110-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/3984-113-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download

Analysis

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