socks5systemz | a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481

General

Target

a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.exe
Size

4.5MB
MD5

bd2996dba83f791d96a30f366d244a80
SHA1

7e21fbc6064acc21449a6a636efdd6ab5aaeccc8
SHA256

a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481
SHA512

a9cc65ffb687e551f8c19604161104dc07b9ccfb73f75f4f41990c88d7cd2a187e19f84a379dfeacd0d17ee59c4f420f13a42c218aadd9acd26e9d62805ec3a5
SSDEEP

98304:mIAK4IOsNXbqUjeq7GGT1/unJyoE5RjHRpkTD9eFM5YrVwJ4sd7iBE+:VZxOsNbqbq91mJyoE7UQMGy/+

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bxpkydy.com

http://bxpkydy.com/search/?q=67e28dd83e0bfb2e455aa5187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff718c9ec969f3d

http://bxpkydy.com/search/?q=67e28dd83e0bfb2e455aa5187c27d78406abdd88be4b12eab517aa5c96bd86ee92864b895a8bbc896c58e713bc90c91f36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9332ce6c9310

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2876-87-0x0000000002860000-0x0000000002902000-memory.dmp	family_socks5systemz
behavioral1/memory/2876-110-0x0000000002860000-0x0000000002902000-memory.dmp	family_socks5systemz
behavioral1/memory/2876-111-0x0000000002860000-0x0000000002902000-memory.dmp	family_socks5systemz

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

Processes:

a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmpdibelius32_64.exedibelius32_64.exe

pid process

1560 a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp
2540 dibelius32_64.exe
2876 dibelius32_64.exe
Loads dropped DLL 1 IoCs

Processes:

a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp

pid process

1560 a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.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 141.98.234.31
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:

a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp

pid process

1560 a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp

pid	process
1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp
2540	dibelius32_64.exe
2876	dibelius32_64.exe

pid	process
1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.exea104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp

description	pid	process	target process
PID 4912 wrote to memory of 1560	4912	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.exe	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp
PID 4912 wrote to memory of 1560	4912	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.exe	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp
PID 4912 wrote to memory of 1560	4912	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.exe	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp
PID 1560 wrote to memory of 2540	1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp	dibelius32_64.exe
PID 1560 wrote to memory of 2540	1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp	dibelius32_64.exe
PID 1560 wrote to memory of 2540	1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp	dibelius32_64.exe
PID 1560 wrote to memory of 2876	1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp	dibelius32_64.exe
PID 1560 wrote to memory of 2876	1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp	dibelius32_64.exe
PID 1560 wrote to memory of 2876	1560	a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp	dibelius32_64.exe

C:\Users\Admin\AppData\Local\Temp\a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.exe
"C:\Users\Admin\AppData\Local\Temp\a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4912

C:\Users\Admin\AppData\Local\Temp\is-FRBAP.tmp\a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp
"C:\Users\Admin\AppData\Local\Temp\is-FRBAP.tmp\a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp" /SL5="$A0052,4514967,54272,C:\Users\Admin\AppData\Local\Temp\a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1560

C:\Users\Admin\AppData\Local\Dibelius\dibelius32_64.exe
"C:\Users\Admin\AppData\Local\Dibelius\dibelius32_64.exe" -i
3⤵
- Executes dropped EXE
PID:2540

C:\Users\Admin\AppData\Local\Dibelius\dibelius32_64.exe
"C:\Users\Admin\AppData\Local\Dibelius\dibelius32_64.exe" -s
3⤵
- Executes dropped EXE
PID:2876

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\Dibelius\dibelius32_64.exe

Filesize
2.6MB

MD5
84dbca077a41e3050660ecec0a7ea287

SHA1
b9c04511f463de5b7c4428f44169a1ab6d12479d

SHA256
88b62344671b33cdccf1902465f1c7f33d2948022c914fe4d64e495c8ed61343

SHA512
7f3c59672ad79911695bfdb20a4a0160b43bc95cfe1b95c5d3901a9199799978c118f8f2039818c7388725284df8ffd726bd1d4b246d400ea06a7de21fc109fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-CG3HV.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FRBAP.tmp\a104b850a27f199bc9f838408d09c5523292eaf7271cc44b159ed27472ea5481.tmp

Filesize
680KB

MD5
25e5b90d9c168bf63df0544393a858dc

SHA1
bcfac04a435d8027b900bca107b291d194a82eae

SHA256
3a8571c743bda2a55bd97d801115ffcc120dbebf2305430a74a3bf1ab80da72d

SHA512
090527ddd80df674b792901d8d00c3d5b4604f40097e1362fbb7250f51535946b021e23f1a8532b620b3cfc44028e99491ecc81d0851b57d3a2ef4dc13d3b929

Download Submit
memory/1560-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1560-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2540-65-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2540-59-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2540-60-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2540-63-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-74-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-94-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-118-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-115-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-71-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-111-0x0000000002860000-0x0000000002902000-memory.dmp

Filesize
648KB

Download
memory/2876-77-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-80-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-83-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-87-0x0000000002860000-0x0000000002902000-memory.dmp

Filesize
648KB

Download
memory/2876-88-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-68-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-97-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-100-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-103-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-106-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-109-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2876-110-0x0000000002860000-0x0000000002902000-memory.dmp

Filesize
648KB

Download
memory/4912-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4912-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4912-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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