socks5systemz | 8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba

General

Target

8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.exe
Size

4.8MB
MD5

c5cbb7ae4ce987ab447f284e2418b39d
SHA1

3019a74e17480361a9f7f8e1d95f1b796454530d
SHA256

8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba
SHA512

5aa931992f698fc6de62afd7d22cdf84b5f72dcffd2fe93dd36df080f445eef3ee5b82cf08944c4ddd4e38f7241c7960fd2381634158e8ec2e88770b96242653
SSDEEP

98304:mj+t3qnZfMg6EvGFZ391CcBmWLxa00weEsz0ukYncE:2i3AZUiG73CcBmv5zfcE

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bpbbcpr.com

http://bpbbcpr.com/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f471ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff712c4ed949d38

http://bpbbcpr.com/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12eab517aa5c96bd86e890834e96148ab2865b77f80ebad9c20f7cb63037ed2ab423a4314383ba915d911ec07bb606a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1e7969e39cc6895

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/644-84-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz
behavioral1/memory/644-107-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz
behavioral1/memory/644-108-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz

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

Processes:

8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exe

pid process

3100 8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp
3872 m4atomp3freeconverter.exe
644 m4atomp3freeconverter.exe
Loads dropped DLL 1 IoCs

Processes:

8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp

pid process

3100 8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.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:

8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp

pid process

3100 8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp

pid	process
3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp
3872	m4atomp3freeconverter.exe
644	m4atomp3freeconverter.exe

pid	process
3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.exe8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp

description	pid	process	target process
PID 2620 wrote to memory of 3100	2620	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.exe	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp
PID 2620 wrote to memory of 3100	2620	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.exe	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp
PID 2620 wrote to memory of 3100	2620	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.exe	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp
PID 3100 wrote to memory of 3872	3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp	m4atomp3freeconverter.exe
PID 3100 wrote to memory of 3872	3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp	m4atomp3freeconverter.exe
PID 3100 wrote to memory of 3872	3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp	m4atomp3freeconverter.exe
PID 3100 wrote to memory of 644	3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp	m4atomp3freeconverter.exe
PID 3100 wrote to memory of 644	3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp	m4atomp3freeconverter.exe
PID 3100 wrote to memory of 644	3100	8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp	m4atomp3freeconverter.exe

C:\Users\Admin\AppData\Local\Temp\8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.exe
"C:\Users\Admin\AppData\Local\Temp\8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2620

C:\Users\Admin\AppData\Local\Temp\is-REIHD.tmp\8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp
"C:\Users\Admin\AppData\Local\Temp\is-REIHD.tmp\8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp" /SL5="$90048,4757022,54272,C:\Users\Admin\AppData\Local\Temp\8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3100

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i
3⤵
- Executes dropped EXE
PID:3872

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -s
3⤵
- Executes dropped EXE
PID:644

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 --field-trial-handle=4268,i,11069752405888604640,8928124405695604965,262144 --variations-seed-version --mojo-platform-channel-handle=3904 /prefetch:8
1⤵
PID:4304

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\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
Filesize
2.9MB

MD5
20d113357a3e4673a9173b9358b7f997

SHA1
159779bb0b5a64530805687203dc42c7025ad14b

SHA256
6849d5798692e61ecc0635989f5690f806593fd27951f780e2732162ce32668a

SHA512
7881f5a9b087315a6b7e6e88e5a8c56307accc40e68c4145512b43d41b1a5a036ee82b8f7beda76303f14381aee27b76fce2cabf883fb51abe9e2ae4644c165c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-85ESK.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-REIHD.tmp\8d8743f5f1eabae664e41dad00603f5a177a7bd52e36493dd8f1194c432656ba.tmp
Filesize
680KB

MD5
dafff71ba13e58daac2c21ed0ed54458

SHA1
ec169d6088ee3a539030ef630164dae1dd7d9a80

SHA256
167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb

SHA512
ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719

Download Submit
memory/644-97-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-100-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-115-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-112-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-108-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/644-107-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/644-106-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-103-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-94-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-69-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-72-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-75-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-78-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-81-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-84-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/644-86-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/644-91-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2620-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2620-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2620-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3100-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3100-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3872-64-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/3872-61-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/3872-60-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/3872-59-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download

Analysis

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