socks5systemz | 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e

General

Target

28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe
Size

4.8MB
MD5

1b417b8b8df1ffa052483f3c1e29e27b
SHA1

078248e04d22dd02b30c62abfcd380de21e7ead7
SHA256

28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e
SHA512

e15117dad59acf7fdab4e774e8a9af424508075a50346c03899171e09564138077ef915127ea51b34973c09f6a28165f3aea643c8bbf18c4a702173d8ac323be
SSDEEP

98304:mJKCZYbPnFjuJLmMutIQ+mAGiigyso9ZEm1Ae6g+02S2:E8hgjde5gk7d1Ae6bnN

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bnfescb.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4908-86-0x0000000000A00000-0x0000000000AA2000-memory.dmp	family_socks5systemz

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

Processes:

28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exe

pid process

4624 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp
1772 m4atomp3freeconverter.exe
4908 m4atomp3freeconverter.exe
Loads dropped DLL 1 IoCs

Processes:

28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp

pid process

4624 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 152.89.198.214
Destination IP 91.211.247.248
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:

28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp

pid process

4624 28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp

pid	process
4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp
1772	m4atomp3freeconverter.exe
4908	m4atomp3freeconverter.exe

pid	process
4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	141.98.234.31

pid	process
4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp

description	pid	process	target process
PID 4800 wrote to memory of 4624	4800	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp
PID 4800 wrote to memory of 4624	4800	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp
PID 4800 wrote to memory of 4624	4800	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp
PID 4624 wrote to memory of 1772	4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp	m4atomp3freeconverter.exe
PID 4624 wrote to memory of 1772	4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp	m4atomp3freeconverter.exe
PID 4624 wrote to memory of 1772	4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp	m4atomp3freeconverter.exe
PID 4624 wrote to memory of 4908	4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp	m4atomp3freeconverter.exe
PID 4624 wrote to memory of 4908	4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp	m4atomp3freeconverter.exe
PID 4624 wrote to memory of 4908	4624	28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp	m4atomp3freeconverter.exe

C:\Users\Admin\AppData\Local\Temp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe
"C:\Users\Admin\AppData\Local\Temp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4800

C:\Users\Admin\AppData\Local\Temp\is-NBUFN.tmp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp
"C:\Users\Admin\AppData\Local\Temp\is-NBUFN.tmp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp" /SL5="$70240,4804064,54272,C:\Users\Admin\AppData\Local\Temp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4624

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:1772

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:4908

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

MD5
d2696426e703d5723152ffd77ecebed1

SHA1
e3e0e6305c79d211eb59e04db85f69f27abb6c44

SHA256
9af2fbf115fd6fc0904f7a015610f94721121d554f32d83bfceeef1323f98752

SHA512
722f971824e1192476afef208f00ebd4fb656183d3efa51084b064626dbd994c41e6e724ee6d41c73f2668af9cbb7e8488d54bb2d55150f5605afd3931dbffbc

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-42QQU.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NBUFN.tmp\28a829dea259a07425eec877a6e32ab74fe9a7f9059dabc9cbc81f153bb74c8e.tmp
Filesize
680KB

MD5
dafff71ba13e58daac2c21ed0ed54458

SHA1
ec169d6088ee3a539030ef630164dae1dd7d9a80

SHA256
167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb

SHA512
ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719

Download Submit
memory/1772-59-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/1772-63-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/1772-62-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4624-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4624-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4800-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4800-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4800-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4908-74-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-94-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-73-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-67-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-77-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-80-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-83-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-86-0x0000000000A00000-0x0000000000AA2000-memory.dmp

Filesize
648KB

Download
memory/4908-89-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-70-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-97-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-100-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-103-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-106-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-109-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-112-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4908-115-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download

Analysis

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