socks5systemz | c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc

General

Target

c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.exe
Size

6.8MB
MD5

b0f79c4db1ced81a1d0f5960e223243a
SHA1

6b771c6ed44d0fb0b470103a50eb313133096572
SHA256

c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc
SHA512

bc50eaef692243f807cbbafe7b40d65efd27558f6bb998faa5fe9c3d07d609ab5796067247858a223aeef28b55e10566f76fac22dbb5a271c4f23a634fa2465e
SSDEEP

196608:rmr7sFlJvQGhZrmmfPQFAzg4VGpLmD8T3jzUsa:rmHsFlJvQGeiMpMGB7T3jzUt

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/912-90-0x0000000000AC0000-0x0000000000B62000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp
2924	voicechangeremerald32.exe
912	voicechangeremerald32.exe

Loads dropped DLL 3 IoCs

pid	Process
4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp
4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp
4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.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	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

pid	Process
4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4616 wrote to memory of 4896	4616	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.exe	91
PID 4616 wrote to memory of 4896	4616	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.exe	91
PID 4616 wrote to memory of 4896	4616	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.exe	91
PID 4896 wrote to memory of 2924	4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp	92
PID 4896 wrote to memory of 2924	4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp	92
PID 4896 wrote to memory of 2924	4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp	92
PID 4896 wrote to memory of 912	4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp	93
PID 4896 wrote to memory of 912	4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp	93
PID 4896 wrote to memory of 912	4896	c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp	93

C:\Users\Admin\AppData\Local\Temp\c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.exe
"C:\Users\Admin\AppData\Local\Temp\c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4616
- C:\Users\Admin\AppData\Local\Temp\is-GFMPD.tmp\c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-GFMPD.tmp\c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp" /SL5="$D0052,6847744,54272,C:\Users\Admin\AppData\Local\Temp\c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4896
- - C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe
    "C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2924
- - C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe
    "C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:912

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=4388 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
1⤵
PID:4600

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\Temp\is-DGP18.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DGP18.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GFMPD.tmp\c3a7b476cc67d5af7405208dc08c500cf26dcf0bb0fcc99a1ed5d409d83cf3bc.tmp

Filesize
680KB

MD5
06dd00456e1bab28b909bc85f775c9f7

SHA1
e00b1f204870633d3ffa407414a975a0e346e44f

SHA256
5909886a7138fbfd08006f1c51d58d011596cfa434c6a69db1b0915ba3c4b715

SHA512
72cd0f25864185d863922a50a965fe71c9d618f50ca5d02f7fdf942ff365423765def91f8c39cd58fd355b0e67618037ee6ca23359769a5fd1d2fc1aaa63f203

Download Submit
C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe

Filesize
4.5MB

MD5
9cdcaf68a48bc39eeb54624fde40b16e

SHA1
4186be46ac19ae07feb4216d0332b683f3efa224

SHA256
5bd6e4569eed90c638f8e9fa2862164dc06b7f69c25907c6663f69355a7faae8

SHA512
1796e2fd75df54c9404f0195420487e76b6f132a39b92dd812213d32a8ba2ca2ef0a543fbc149264429864dbfeb15d0400904d81624fb9ecdd6993dd0b666f25

Download Submit
memory/912-90-0x0000000000AC0000-0x0000000000B62000-memory.dmp

Filesize
648KB

Download
memory/912-98-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-117-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-113-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-110-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-107-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-104-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-100-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-93-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-76-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-79-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-82-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-85-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/912-88-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/2924-70-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/2924-68-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/2924-66-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/2924-65-0x0000000000400000-0x0000000000884000-memory.dmp

Filesize
4.5MB

Download
memory/4616-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4616-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4616-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4896-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4896-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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