socks5systemz | 2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45

General

Target

2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.exe
Size

5.1MB
MD5

d872d1a4572a41232d86aefe1d79c7ff
SHA1

b03beaffcac5f8cec84172215654e41ed479ecb7
SHA256

2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45
SHA512

f9748288666fcad17a56d24f6798ab43201fb6458f2208863f8f5ed74df629b2c2be76df32cb5387fe9f5c0dbb29b54966b1b1018a80bd0b6a5531d432e2d8d7
SSDEEP

98304:m3TaHnMoZhLbiHS8rVVecK8BgmJiY3tNjrmlFUE82SS+h:BZZ1iHS8b4rAiYjmlF/NSSY

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2540-92-0x0000000000960000-0x0000000000A02000-memory.dmp	family_socks5systemz
behavioral2/memory/2540-119-0x0000000000960000-0x0000000000A02000-memory.dmp	family_socks5systemz
behavioral2/memory/2540-118-0x0000000000960000-0x0000000000A02000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmpmidiplayer32.exemidiplayer32.exe

pid process

1768 2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
4400 midiplayer32.exe
2540 midiplayer32.exe

Loads dropped DLL 3 IoCs

Processes:

2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp

pid	process
1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp

Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 45.155.250.90
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

Processes:

2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp

pid process

1768 2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp

description	ioc
Destination IP	45.155.250.90

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.exe2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp

description	pid	process	target process
PID 1364 wrote to memory of 1768	1364	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.exe	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
PID 1364 wrote to memory of 1768	1364	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.exe	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
PID 1364 wrote to memory of 1768	1364	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.exe	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
PID 1768 wrote to memory of 4400	1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp	midiplayer32.exe
PID 1768 wrote to memory of 4400	1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp	midiplayer32.exe
PID 1768 wrote to memory of 4400	1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp	midiplayer32.exe
PID 1768 wrote to memory of 2540	1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp	midiplayer32.exe
PID 1768 wrote to memory of 2540	1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp	midiplayer32.exe
PID 1768 wrote to memory of 2540	1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp	midiplayer32.exe

C:\Users\Admin\AppData\Local\Temp\2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.exe
"C:\Users\Admin\AppData\Local\Temp\2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1364

C:\Users\Admin\AppData\Local\Temp\is-L2KHG.tmp\2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
"C:\Users\Admin\AppData\Local\Temp\is-L2KHG.tmp\2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp" /SL5="$40218,5090715,54272,C:\Users\Admin\AppData\Local\Temp\2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1768

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
"C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -i
3⤵
- Executes dropped EXE
PID:4400

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
"C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -s
3⤵
- Executes dropped EXE
PID:2540

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
Filesize
2.4MB

MD5
f043fdbb5b4e2d63ff1f6d79c2e8d38c

SHA1
cff34842b0de5749e82e2235d9289102856b9b3e

SHA256
60901e4a99344cb2b78955142e0e4b6bcbea2b0c69393e1faefde1abe3809016

SHA512
08b636b6b8fa338676688dac51efd149a403067d70ec62b678546590af80d782a30dfb1d882d2b6ccee4a7bae70fa72dd3f632a2ff8400501f8263f90ac92011

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-IJ8OT.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-IJ8OT.tmp\_isetup\_isdecmp.dll
Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-L2KHG.tmp\2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
Filesize
680KB

MD5
29ac48e0713a4220ff4b4b47efe542b4

SHA1
9ea8bdf5547a541b755f4b2c0bc14bf817885e94

SHA256
deead3dd651930ad0bec5d7bae647d7a1637b48bb7495593995218c4cd6dd67c

SHA512
501cdc7df40fb0cd1a114b4d5f5dcab765141c58f29bafa1e4a816319354a3d6d9e0d4b2ee5a2fad64f3fb08fb7bbdaad30551587a875f8fbdc2acdb8f67a3d4

Download Submit
memory/1364-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1364-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1364-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1768-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1768-77-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2540-105-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-91-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-126-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-75-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-123-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-118-0x0000000000960000-0x0000000000A02000-memory.dmp

Filesize
648KB

Download
memory/2540-78-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-81-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-82-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-85-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-88-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-73-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-92-0x0000000000960000-0x0000000000A02000-memory.dmp

Filesize
648KB

Download
memory/2540-97-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-102-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-119-0x0000000000960000-0x0000000000A02000-memory.dmp

Filesize
648KB

Download
memory/2540-108-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-111-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-114-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/2540-117-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/4400-65-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/4400-66-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/4400-71-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download
memory/4400-70-0x0000000000400000-0x0000000000675000-memory.dmp

Filesize
2.5MB

Download

pid	process
1768	2ea3ca840a30136162c1bf721b27551a6f06a7372b8d2d56fef05bb47f1caf45.tmp
4400	midiplayer32.exe
2540	midiplayer32.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads