socks5systemz | 7ed000de7aa37968d95b86f688ab0b97219bd9ea686cb1cdedc861a687499180

General

Target

7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.exe
Size

1.8MB
MD5

944763da3ca60554cc6befb9adbc4a8b
SHA1

666a0b24de76ef9907a0488bcfce63ba1426b6a7
SHA256

7ed000de7aa37968d95b86f688ab0b97219bd9ea686cb1cdedc861a687499180
SHA512

a8ff0fb59214e39b69adfa206d6e21ed8584542fa45dd53af56ff6bb712c81d05bc72792b195f9c1602049d7202ae5d1f874a2d2913cbbbfe17a5212de22f1a8
SSDEEP

49152:62r5Gxe+1W3rcbHvLM8oW1wCKOKKuhi4Ml2aP:bQx43raHjM8oWjUSl2aP

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4916-69-0x00000000009D0000-0x0000000000A72000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1748	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp
1716	fsound32.exe
4916	fsound32.exe

Loads dropped DLL 1 IoCs

pid	Process
1748	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp

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 WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 1748	1448	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.exe	91
PID 1448 wrote to memory of 1748	1448	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.exe	91
PID 1448 wrote to memory of 1748	1448	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.exe	91
PID 1748 wrote to memory of 1716	1748	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp	92
PID 1748 wrote to memory of 1716	1748	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp	92
PID 1748 wrote to memory of 1716	1748	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp	92
PID 1748 wrote to memory of 4916	1748	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp	93
PID 1748 wrote to memory of 4916	1748	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp	93
PID 1748 wrote to memory of 4916	1748	7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp	93

C:\Users\Admin\AppData\Local\Temp\7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.exe
"C:\Users\Admin\AppData\Local\Temp\7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Users\Admin\AppData\Local\Temp\is-33L9R.tmp\7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-33L9R.tmp\7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp" /SL5="$F0046,1494255,54272,C:\Users\Admin\AppData\Local\Temp\7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1748
- - C:\Users\Admin\AppData\Local\Focus Sound\fsound32.exe
    "C:\Users\Admin\AppData\Local\Focus Sound\fsound32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1716
- - C:\Users\Admin\AppData\Local\Focus Sound\fsound32.exe
    "C:\Users\Admin\AppData\Local\Focus Sound\fsound32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4916

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=3792 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
1⤵
PID:2364

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Focus Sound\fsound32.exe

Filesize
1.9MB

MD5
69331023065320773cf59319f481d329

SHA1
80ea2e902b4d90a042117cedc94e1a0ffd0ea4dd

SHA256
c934b3b6cc750620a11b3e35d99a42a7d084b677be3ccb1a70e4f93ca8d93e6b

SHA512
0884422e206b9528f4d1089993507c44a8bf2baa8e0b34fb679624ca57beb26724971e2e44d57183f185e05caec3ffac70c79fe1f0d6a536238bbb2877b9b43f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0MI1M.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-33L9R.tmp\7ED000DE7AA37968D95B86F688AB0B97219BD9EA686CB.tmp

Filesize
677KB

MD5
4509b43c1a3454d372ea30a76a0be530

SHA1
9162334c63fee857285b9deab7974ab9e3e1bcd2

SHA256
75de139a74c2db4fb283b893c64b41a5a445b16b9db601a582eb1f3f31586de4

SHA512
7549e850495154b1ac9fb85dfe3929c27b5708606659d8df3ec6ec8de0808811641610de151c9570ffea7015dacd889042790110c4f8849660f98cd4a52275a0

Download Submit
memory/1448-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1448-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1448-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1716-39-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1716-40-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1716-41-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1716-45-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/1748-50-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1748-7-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4916-52-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-68-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-47-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-55-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-56-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-59-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-62-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-65-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-69-0x00000000009D0000-0x0000000000A72000-memory.dmp

Filesize
648KB

Download
memory/4916-49-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-75-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-78-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-81-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-82-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-85-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-88-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download
memory/4916-91-0x0000000000400000-0x00000000005E1000-memory.dmp

Filesize
1.9MB

Download

Analysis

Sharing