socks5systemz | fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d

General

Target

fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.exe
Size

4.3MB
MD5

7b5c9c816277ce3e0ab2c2987e2fb17d
SHA1

38d830f6b5cfe60ffc1ac3194c84f53d28afa063
SHA256

fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d
SHA512

a24ba544c500446eced652f945618abf48f9898ef68070441fed894aa8a2853312b3a9e691ddd44c8dcf4013e723df40c7b104cdf2a0acbb839b78ba841b6e05
SSDEEP

98304:cRW2fva4Yxwp0BT7o0OaCs4qcezx9IAAfdwUnvJG7Ly/E3Nm44mhjgc0Gft4IbB+:mXHYpB2Zqcex9DABn4b3NmYjlXVLv6

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bhcmibi.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffa15c7e89d9f3f

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1544-90-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz

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

Detects executables packed with VMProtect. 17 IoCs

resource	yara_rule
behavioral2/memory/912-62-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/912-63-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/912-66-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-70-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-74-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-77-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-79-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-82-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-86-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-89-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-95-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-98-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-100-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-102-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-106-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-108-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1544-111-0x0000000000400000-0x00000000005E1000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Executes dropped EXE 3 IoCs

pid	Process
4428	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp
912	mixerfreeedition.exe
1544	mixerfreeedition.exe

Loads dropped DLL 1 IoCs

pid	Process
4428	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.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	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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 4428	2184	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.exe	91
PID 2184 wrote to memory of 4428	2184	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.exe	91
PID 2184 wrote to memory of 4428	2184	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.exe	91
PID 4428 wrote to memory of 912	4428	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp	92
PID 4428 wrote to memory of 912	4428	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp	92
PID 4428 wrote to memory of 912	4428	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp	92
PID 4428 wrote to memory of 1544	4428	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp	93
PID 4428 wrote to memory of 1544	4428	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp	93
PID 4428 wrote to memory of 1544	4428	fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp	93

C:\Users\Admin\AppData\Local\Temp\fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.exe
"C:\Users\Admin\AppData\Local\Temp\fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Users\Admin\AppData\Local\Temp\is-RU9TQ.tmp\fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-RU9TQ.tmp\fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp" /SL5="$15011E,4223599,54272,C:\Users\Admin\AppData\Local\Temp\fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:4428
- - C:\Users\Admin\AppData\Local\Mixer Free Edition\mixerfreeedition.exe
    "C:\Users\Admin\AppData\Local\Mixer Free Edition\mixerfreeedition.exe" -i
    3⤵
    - Executes dropped EXE
    PID:912
- - C:\Users\Admin\AppData\Local\Mixer Free Edition\mixerfreeedition.exe
    "C:\Users\Admin\AppData\Local\Mixer Free Edition\mixerfreeedition.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1544

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:3120

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Mixer Free Edition\libeay32.dll

Filesize
1.9MB

MD5
5fbd844a6ce26deb5337e8e6dd7c7b70

SHA1
5302e49b2027a07c7bb8f95d45510efc0d954cf8

SHA256
f0d640c4e07c81c29f0ec2b603ec3017bdd4db0d0e26c3fa364a6bbf45826058

SHA512
c383b5ec9fb9efd53cdf00c2b0940fe60a35a857f8be40ae0763647c3523712553910aca8504768cc86895b2168525fa6043d567e66e0ed5696e2c8e5e7b992d

Download Submit
C:\Users\Admin\AppData\Local\Mixer Free Edition\mixerfreeedition.exe

Filesize
1.9MB

MD5
d15b798e9fa9b56ad9f205561a283486

SHA1
1878b0ff7c1ff143287f91ef0ff07e435bc00a77

SHA256
c0711fff5c8b5c5395aae89ecabd51b7ebf3f037d31114d281f8eccf327703da

SHA512
e388beba35e9b4dd84b0073000a1ee0749d87d0161eb817048da367f2f745ec96f11fec7fb5b9650f3c4137f030757c47d6146ae6428689312fbfc3532ee36b2

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6Q69O.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-RU9TQ.tmp\fd710dcf20f70aa20147e7ccc428cd7d9a4373f650f51d1903ed0dd29169869d.tmp

Filesize
696KB

MD5
c6061f804038f66af0cbf28c43abf849

SHA1
0473fc63f6514857bba850ce50206fbe8c992b64

SHA256
6261d17d1ab1744496c0f2988954989398d6829f2417df5420ffdf6d64f8678e

SHA512
edf27bfeec82752b6d52a8eb68853dde5d5effd9c3a8c1c93e181167d8bc5ae2c6d7b19ac74955c91aa4e90913fb7dcc8439d33a5e0c8aac5fe71c914596e0ae

Download Submit
memory/912-61-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/912-66-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/912-63-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/912-62-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-95-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-82-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-111-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-108-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-106-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-70-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-74-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-77-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-79-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-102-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-86-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-89-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-90-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/1544-100-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1544-98-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/2184-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2184-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2184-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4428-60-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/4428-7-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download

Analysis

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