socks5systemz | 1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665

General

Target

1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.exe
Size

5.0MB
MD5

d41522bc2c3b5f7d7366753e6ee91439
SHA1

32347a1f9c16a329d3e66fdf2299301bcc0994c9
SHA256

1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665
SHA512

dc30598951e96e9448b5090a9425d244ca23f6bd9c396c631bd25d80278edda1e43107dab682d3ae6c5f978e5cc40a0b3181c2b09084816fff4533033c79e7c5
SSDEEP

98304:C0Ftg8Sin1o4AN/Mc9aRnflZttmnyFHA5ysd/GSCZ3nDJE1noH+Qxg:N+8Sin1o4AToZt8nyFHA5yE/pCZ39E1v

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/4568-87-0x0000000000970000-0x0000000000A11000-memory.dmp	family_socks5systemz
behavioral1/memory/4568-112-0x0000000000970000-0x0000000000A11000-memory.dmp	family_socks5systemz
behavioral1/memory/4568-111-0x0000000000970000-0x0000000000A11000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp
3316	totalrecorderfree32_64.exe
4568	totalrecorderfree32_64.exe

Loads dropped DLL 1 IoCs

pid	Process
4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.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
4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4072 wrote to memory of 4452	4072	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.exe	82
PID 4072 wrote to memory of 4452	4072	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.exe	82
PID 4072 wrote to memory of 4452	4072	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.exe	82
PID 4452 wrote to memory of 3316	4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp	86
PID 4452 wrote to memory of 3316	4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp	86
PID 4452 wrote to memory of 3316	4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp	86
PID 4452 wrote to memory of 4568	4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp	87
PID 4452 wrote to memory of 4568	4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp	87
PID 4452 wrote to memory of 4568	4452	1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp	87

C:\Users\Admin\AppData\Local\Temp\1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.exe
"C:\Users\Admin\AppData\Local\Temp\1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4072
- C:\Users\Admin\AppData\Local\Temp\is-27H3D.tmp\1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-27H3D.tmp\1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp" /SL5="$100052,4962146,54272,C:\Users\Admin\AppData\Local\Temp\1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4452
- - C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32_64.exe
    "C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32_64.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3316
- - C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32_64.exe
    "C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32_64.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4568

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\Temp\is-27H3D.tmp\1fadf2ace0f4a888c50190b3e82174fcf8e32d19f3423566ac69d81f12961665.tmp

Filesize
680KB

MD5
32f6596e136f3f8cfa1fbfd85acef958

SHA1
44411edb185b448613ac7dcfc24a6e2c0da382a3

SHA256
cd40719fec44d56ec09eeabfd56896f6bc80d4cd982f042068baca42141b4713

SHA512
e75005af4acd5ec4f53d584da8fbb2a72358af818dd6643e7eb5b862b3be582ed9cc8c8fb205b04ac2356da87826ab088c0ec658ee890a7605fd32be9b01d626

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32_64.exe

Filesize
3.1MB

MD5
8b8bc7b5ab514c8a01f1a656486dca24

SHA1
58cd794d696cddef21a31382b9ee8a8031e0056a

SHA256
8ed25b33a246e041677c32c3468384fd4e7fa160843337a809a19c05d9ca8d61

SHA512
0c05b840bb37556bd852468bc02a361e10dfb729110580d5d75728ec85e119b92a6fb72af44e65498250240f2ef3420c905bd44ea0cd90330fd5e0a1e92d5775

Download Submit
memory/3316-60-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3316-59-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3316-63-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3316-64-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4072-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4072-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4072-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4452-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4452-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4568-75-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-90-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-71-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-74-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-66-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-78-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-81-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-84-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-87-0x0000000000970000-0x0000000000A11000-memory.dmp

Filesize
644KB

Download
memory/4568-68-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-95-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-98-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-101-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-104-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-107-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-110-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-112-0x0000000000970000-0x0000000000A11000-memory.dmp

Filesize
644KB

Download
memory/4568-111-0x0000000000970000-0x0000000000A11000-memory.dmp

Filesize
644KB

Download
memory/4568-116-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/4568-119-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download

Analysis

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