socks5systemz | 553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a

General

Target

553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe
Size

3.8MB
MD5

00d2419eb68c1e94e21719c7c35eb44a
SHA1

a1125972d2784b8ec56831e2fe73ef74793a90fe
SHA256

553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a
SHA512

3cb035f44cbaf180f6935d103074dc2c8ebadd7fbb6d3ccb66632d09663305e19c6df492a7b1bce20b8a7ce46466c12889694e9f682686a06f0fcae15457c37e
SSDEEP

98304:+prPt3JYBlpW2NuI++UUsuUTkhocLNUL8/UPSgrpBd1Z4:yrTYvpW+uLzkhPaL/PSENX4

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://aymdajd.ru/search/?q=67e28dd8395dfb2f495fac1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a638df917c8e79d

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2476-94-0x00000000025B0000-0x0000000002652000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp
2644	isaprintstar.exe
2476	isaprintstar.exe

Loads dropped DLL 5 IoCs

pid	Process
2904	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe
3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp
3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp
3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp
3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.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

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 3052	2904	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe	28
PID 2904 wrote to memory of 3052	2904	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe	28
PID 2904 wrote to memory of 3052	2904	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe	28
PID 2904 wrote to memory of 3052	2904	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe	28
PID 2904 wrote to memory of 3052	2904	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe	28
PID 2904 wrote to memory of 3052	2904	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe	28
PID 2904 wrote to memory of 3052	2904	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe	28
PID 3052 wrote to memory of 2644	3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp	29
PID 3052 wrote to memory of 2644	3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp	29
PID 3052 wrote to memory of 2644	3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp	29
PID 3052 wrote to memory of 2644	3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp	29
PID 3052 wrote to memory of 2476	3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp	30
PID 3052 wrote to memory of 2476	3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp	30
PID 3052 wrote to memory of 2476	3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp	30
PID 3052 wrote to memory of 2476	3052	553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp	30

C:\Users\Admin\AppData\Local\Temp\553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe
"C:\Users\Admin\AppData\Local\Temp\553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Users\Admin\AppData\Local\Temp\is-OBB03.tmp\553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-OBB03.tmp\553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp" /SL5="$400F2,3684580,54272,C:\Users\Admin\AppData\Local\Temp\553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe
    "C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2644
- - C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe
    "C:\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2476

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

\Users\Admin\AppData\Local\ISA Print Star\isaprintstar.exe

Filesize
2.2MB

MD5
577859741940daa9615ae36d034ec109

SHA1
046ef2c29d6eff22fa82a3d77da39bc3beb0dcca

SHA256
5f58b44d7596b70eeb9567b57c83f49f8bb7336b14db86392b0ac6183000f5c9

SHA512
53a51d9278da09165e922d185fed6ab7be3ae305d71928609285a236dba1b42e67e06652177f4b6e55789d4e63fb06c9883c3fb4cc884ad95a81496dc4642ad3

Download Submit
\Users\Admin\AppData\Local\Temp\is-CMGL6.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-CMGL6.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-OBB03.tmp\553ace89df50b8da15b46a191a96a9da81466169757ee8cfb704ce7d3ae4be9a.tmp

Filesize
695KB

MD5
b345a6e75b97b9ce8df84d33087da9c0

SHA1
36785d14f8041abcb467ce79babe6e98850a1825

SHA256
d1b4da9f8724f4593b323c3754e5056b4d6222382d25eab5b113a097f2223286

SHA512
419cfd117d3fb58e024f2136efa9138f2c3d62a0d421025789267512b29a60c66cff9fd9106e180336cc37f1231d00cf412bc761fe2670ec19b96b537f1a054f

Download Submit
memory/2476-109-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-115-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-139-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-134-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-131-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-128-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-125-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-122-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-72-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-119-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-112-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-76-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-106-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-103-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-81-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-84-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-87-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-90-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-93-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2476-94-0x00000000025B0000-0x0000000002652000-memory.dmp

Filesize
648KB

Download
memory/2476-100-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2644-70-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2644-69-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2644-66-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2644-65-0x0000000000400000-0x0000000000631000-memory.dmp

Filesize
2.2MB

Download
memory/2904-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2904-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2904-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3052-80-0x00000000039D0000-0x0000000003C01000-memory.dmp

Filesize
2.2MB

Download
memory/3052-77-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/3052-75-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/3052-8-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/3052-64-0x00000000039D0000-0x0000000003C01000-memory.dmp

Filesize
2.2MB

Download

Analysis

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