socks5systemz | f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a

General

Target

f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.exe
Size

4.8MB
MD5

abdb165243c40316d3d229de15b88d42
SHA1

9491f350213b843dfd4287eba4deca1db91c7e60
SHA256

f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a
SHA512

d5d9298b358cf89379b0f1520de10fc3ff4f4c0a48ab3056b937f273700fff1488d82f6b4c3b2b2abdcaeed432f8075e6b67f924d82fc7346339220280fa19ed
SSDEEP

98304:mHdONqLtOwBwcKw3T8Xz4153vdwq5hkcCJVZ17tqdHaaRbXsk:oiB8KwDc4P31w9cixJqd6ad8k

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bgpkicy.com

http://bgpkicy.com/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff718c2e8969f3c

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4752-82-0x00000000024D0000-0x0000000002572000-memory.dmp	family_socks5systemz

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

Processes:

f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmpaudialstunebite32_64.exeaudialstunebite32_64.exe

pid process

4512 f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp
5028 audialstunebite32_64.exe
4752 audialstunebite32_64.exe
Loads dropped DLL 1 IoCs

Processes:

f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp

pid process

4512 f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.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:

f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp

pid process

4512 f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp

pid	process
4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp
5028	audialstunebite32_64.exe
4752	audialstunebite32_64.exe

pid	process
4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.exef2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp

description	pid	process	target process
PID 512 wrote to memory of 4512	512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.exe	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp
PID 512 wrote to memory of 4512	512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.exe	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp
PID 512 wrote to memory of 4512	512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.exe	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp
PID 4512 wrote to memory of 5028	4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp	audialstunebite32_64.exe
PID 4512 wrote to memory of 5028	4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp	audialstunebite32_64.exe
PID 4512 wrote to memory of 5028	4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp	audialstunebite32_64.exe
PID 4512 wrote to memory of 4752	4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp	audialstunebite32_64.exe
PID 4512 wrote to memory of 4752	4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp	audialstunebite32_64.exe
PID 4512 wrote to memory of 4752	4512	f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp	audialstunebite32_64.exe

C:\Users\Admin\AppData\Local\Temp\f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.exe
"C:\Users\Admin\AppData\Local\Temp\f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:512

C:\Users\Admin\AppData\Local\Temp\is-JMT44.tmp\f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp
"C:\Users\Admin\AppData\Local\Temp\is-JMT44.tmp\f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp" /SL5="$50202,4811953,54272,C:\Users\Admin\AppData\Local\Temp\f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4512

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe" -i
3⤵
- Executes dropped EXE
PID:5028

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe" -s
3⤵
- Executes dropped EXE
PID:4752

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\Audials Tunebite\audialstunebite32_64.exe

Filesize
2.4MB

MD5
e03759c75ef7cc4aa02ed235b028b348

SHA1
000491fa368f0b1761501f715bec0613341264a9

SHA256
37c1bf527fc8cea7911e55d64a997a3fb9058e69f180449da993d3cdffa93ea4

SHA512
d43f84e0c193916638aa33eb484d35b6de1f35d31f8be2c367dd817138f04f8c695b0238baa5652eb648dd01b36eaaeec43afb35af9b9506273739cd56871f62

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JMT44.tmp\f2c9155cfe4489096e511e436be5940f6f94612f91c57021a74b4be3cbda2f9a.tmp

Filesize
680KB

MD5
9c0c87dbb79871a4914149cd5acefbf8

SHA1
35627d4c709114e03240747deb05d154743ccb59

SHA256
0b29aab1bdbef4c1435541320b77e3a47d063f2cb0657018a918907d8ede18bf

SHA512
6608bfbf67b572584cd068ca60eb71fa972384f7c3cfa87011e82e5c15cb10332d4dcc6db23fc3153104dd635e6b2eb9e27d6eb08a07f4a396b04757a20080bd

Download Submit
\Users\Admin\AppData\Local\Temp\is-19LFI.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/512-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/512-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/512-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4512-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4752-107-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-91-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-128-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-125-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-69-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-72-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-75-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-78-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-81-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-82-0x00000000024D0000-0x0000000002572000-memory.dmp

Filesize
648KB

Download
memory/4752-86-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-66-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-94-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-97-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-100-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-103-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-122-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-110-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-113-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-116-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4752-119-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/5028-59-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/5028-61-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/5028-63-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download

Analysis

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