socks5systemz | 495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6

General

Target

495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.exe
Size

5.3MB
MD5

41bbae1643e15929d07776431147c9ec
SHA1

aeec8f3dfa2fa9b61099c65c1e10389cede8381f
SHA256

495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6
SHA512

509ccc01fcad6fa2e91601ec9fe835c5505aaf3b81281a51ba12cf2a2a22cb19f17b2cee466f561d06089853df00877aa210a9bf47f3e5480ee7bad78deeb87d
SSDEEP

98304:+fAIgzlNGdj2X6wES/UTYdIWn6OXd/9MM4hlNZEQZ9l+uuAcf+BBLtLXd1ZZQ3:aArWdjG/UZW6OXXMMWTEqpMf+ltXZM

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://aiqcbcp.ru/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ffa13c0e6959239

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4896-89-0x00000000008F0000-0x0000000000992000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp
4556	bestmetronome.exe
4896	bestmetronome.exe

Loads dropped DLL 3 IoCs

pid	Process
2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp
2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp
2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.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	152.89.198.214

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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2560	2428	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.exe	71
PID 2428 wrote to memory of 2560	2428	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.exe	71
PID 2428 wrote to memory of 2560	2428	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.exe	71
PID 2560 wrote to memory of 4556	2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp	72
PID 2560 wrote to memory of 4556	2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp	72
PID 2560 wrote to memory of 4556	2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp	72
PID 2560 wrote to memory of 4896	2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp	73
PID 2560 wrote to memory of 4896	2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp	73
PID 2560 wrote to memory of 4896	2560	495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp	73

C:\Users\Admin\AppData\Local\Temp\495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.exe
"C:\Users\Admin\AppData\Local\Temp\495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Users\Admin\AppData\Local\Temp\is-NNU00.tmp\495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NNU00.tmp\495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp" /SL5="$B01CE,5280940,54272,C:\Users\Admin\AppData\Local\Temp\495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2560
- - C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe
    "C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4556
- - C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe
    "C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe

Filesize
2.1MB

MD5
4c14d96da79b781e36040e6f2cf5e17a

SHA1
a70af36e8330d61d99a0c360185047321ffa947c

SHA256
416354a9d02bb40312385fe3140b804d31411025c348b8b93569358fc31e1678

SHA512
1f6215af6672cfa4a4c31d6a13c785c8f30b99f10b083eda6099451a2ba35119b0d96b9d4b65c08bac1295238bbea8d74d24b2d297c5039dd3fcfe845fefc3c5

Download Submit
C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe

Filesize
576KB

MD5
2697a4289007c465f74213adc593d590

SHA1
71504f35cfa2e214d63e5c85900473d5658caa4d

SHA256
48c2ab445f325c4df747a9959e45f523b9fc1c045d0ed60deca23729067bb1b4

SHA512
ec047c83ea25fea8d186b2b8b581364f3399673f578e7e37929e3316c673b63dd7e57d20468d0bd8f975cecccc217b430dd7bd60cb7f14e734101cad7b25f4bf

Download Submit
C:\Users\Admin\AppData\Local\Best Metronome\libeay32.dll

Filesize
2.0MB

MD5
1176a2fcbc3cfb77207db7575dd6a522

SHA1
e0a854c77a65e542712c9fe3feae2331fcddb7f4

SHA256
553200e21658e7976d496c52cc1aeb50446b877ccda4f0b073a553ec3fb48560

SHA512
bb00340e4931342c4db499d68e98542f401a985c062810225ee661a7a289a885dab8c64f37fb231212ad2a5d703f3fd0528e8402fc1033cf4128d075714e3f34

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NNU00.tmp\495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp

Filesize
512KB

MD5
8e62ce5d13f09933ddf74bd821128ddd

SHA1
6c232d6016af44e6e2cf5af64bb2f8f5ef8a41ff

SHA256
1f9b1f80d78f36b306019c82c9ede60605dd628e38b19aa502b49d395acd8aeb

SHA512
5c1a16cd046ffd4b40d19ff26be717d0f9f2d1bf1c01fac69ec9bcb8601741d011a6211805a3f2eaa11122d80f43e60b4c12e58fa120436d5e2f2a42d75c5815

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NNU00.tmp\495ca5eae2fb4ff041f2e4ee79dc92d69ef41c7f388f4a8ad30ff8d5ad2185b6.tmp

Filesize
695KB

MD5
eff62fa565f574064e7161362d4fc6a3

SHA1
fba3f95b5835f67976d5ac987b07ed833a377710

SHA256
54b150ce878dba607ea665bdc9f624caec44459bec8ca78065ff1eddc1772b58

SHA512
51aa449b826a70106e4bd5b4aa6e2603f0aaa67b5a52275d1f4484e2ae0c56d0525b35fbf473f672377861aafa01e39348923427550f3e5105440c2d94a02be1

Download Submit
\Users\Admin\AppData\Local\Temp\is-62A3J.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-62A3J.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/2428-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2428-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2428-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2560-10-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2560-75-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4556-65-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4556-66-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4556-69-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-82-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-107-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-79-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-72-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-85-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-88-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-89-0x00000000008F0000-0x0000000000992000-memory.dmp

Filesize
648KB

Download
memory/4896-93-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-98-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-101-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-104-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-76-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-110-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-113-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-117-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-120-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-123-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-126-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-129-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-132-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download
memory/4896-137-0x0000000000400000-0x0000000000647000-memory.dmp

Filesize
2.3MB

Download

Analysis

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