socks5systemz | daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a

Analysis

max time kernel
146s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
29-06-2024 12:25

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General

Target

daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.exe
Size

5.1MB
MD5

9a3174d1fe7143489aa92c8f44693189
SHA1

10005595e058ad126574068fdf39dcf41181e76c
SHA256

daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a
SHA512

ce81f2c36714dec018cd083fcbff3977faef0c090d2d161b510d41e60fb906239ad5cccb16b2b1ef24b4f3744acc9e5836e53d728e0c0ccf45b7dc145d214c80
SSDEEP

98304:CabHSQxovZ7J7+nxJpRKjZ7+dYfeXsw5lC/v0SQxY:jcVUJRKjZPvw5EX0SQC

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2424-87-0x0000000000AB0000-0x0000000000B51000-memory.dmp	family_socks5systemz
behavioral2/memory/2424-112-0x0000000000AB0000-0x0000000000B51000-memory.dmp	family_socks5systemz
behavioral2/memory/2424-111-0x0000000000AB0000-0x0000000000B51000-memory.dmp	family_socks5systemz

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

Processes:

daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmpvkfreeaudiosaver32.exevkfreeaudiosaver32.exe

pid process

4036 daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp
5080 vkfreeaudiosaver32.exe
2424 vkfreeaudiosaver32.exe
Loads dropped DLL 1 IoCs

Processes:

daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp

pid process

4036 daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.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 91.211.247.248
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:

daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp

pid process

4036 daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp

pid	process
4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp
5080	vkfreeaudiosaver32.exe
2424	vkfreeaudiosaver32.exe

pid	process
4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.exedaeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp

description	pid	process	target process
PID 3700 wrote to memory of 4036	3700	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.exe	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp
PID 3700 wrote to memory of 4036	3700	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.exe	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp
PID 3700 wrote to memory of 4036	3700	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.exe	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp
PID 4036 wrote to memory of 5080	4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp	vkfreeaudiosaver32.exe
PID 4036 wrote to memory of 5080	4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp	vkfreeaudiosaver32.exe
PID 4036 wrote to memory of 5080	4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp	vkfreeaudiosaver32.exe
PID 4036 wrote to memory of 2424	4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp	vkfreeaudiosaver32.exe
PID 4036 wrote to memory of 2424	4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp	vkfreeaudiosaver32.exe
PID 4036 wrote to memory of 2424	4036	daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp	vkfreeaudiosaver32.exe

C:\Users\Admin\AppData\Local\Temp\daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.exe
"C:\Users\Admin\AppData\Local\Temp\daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3700

C:\Users\Admin\AppData\Local\Temp\is-GHLT5.tmp\daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp
"C:\Users\Admin\AppData\Local\Temp\is-GHLT5.tmp\daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp" /SL5="$40242,5119966,54272,C:\Users\Admin\AppData\Local\Temp\daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4036

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32.exe" -i
3⤵
- Executes dropped EXE
PID:5080

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32.exe" -s
3⤵
- Executes dropped EXE
PID:2424

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\is-GHLT5.tmp\daeea89cadc7bec5f8fbe6b5a7a267275f8b22b4fabc6443fa4fb19f05f6860a.tmp
Filesize
680KB

MD5
31afd676fdf62a3ee6a499837ea0ffef

SHA1
9a014771b713474cd787cd20857b79b6cdf236c3

SHA256
ed615763544059955ebae2a355a1ecca2bba3af561c82b274ee86b303d52a292

SHA512
ca9e0d6d3f174027aeafa15a2b7e3642c8e5208d69dd7cafb5d5e841298973503a1e53226ae3df7e2e2601b574da55dde16bcc93b22101710060876b248979b3

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32.exe
Filesize
3.5MB

MD5
b63980b3331e5d6044d3f03a05174ec7

SHA1
6ca86f6560527383f3185be64d35099aac3998eb

SHA256
50444e9699c2f7864f47edff519c4c60a2250d6349b6add250befcec0e9dccfb

SHA512
17b65845bee605e30176b962c70f305d54727a14fbc70281c78273a95a53f3579a3da6023851329c8bccf067d4e3b122257d6c7daceffa2d9983eee29d952dd7

Download Submit
memory/2424-95-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-78-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-119-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-116-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-111-0x0000000000AB0000-0x0000000000B51000-memory.dmp

Filesize
644KB

Download
memory/2424-112-0x0000000000AB0000-0x0000000000B51000-memory.dmp

Filesize
644KB

Download
memory/2424-66-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-68-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-110-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-107-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-71-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-74-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-75-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-104-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-81-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-84-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-87-0x0000000000AB0000-0x0000000000B51000-memory.dmp

Filesize
644KB

Download
memory/2424-90-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-101-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/2424-98-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/3700-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3700-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3700-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4036-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4036-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5080-63-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/5080-60-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download
memory/5080-59-0x0000000000400000-0x0000000000782000-memory.dmp

Filesize
3.5MB

Download