chaos | b15052d17afc1a01e83cdc0624dd268838237f8cd66fa12c56706bdee8a61286

Analysis

max time kernel
7s
max time network
9s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
submitted
15-09-2024 05:59

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General

Target

Encrypt.exe
Size

1.2MB
MD5

8728ba233fcb020a6a2eaabb90df630c
SHA1

c6dc576f2e0423e8a0f36bba51fa7c65e1e281e7
SHA256

b15052d17afc1a01e83cdc0624dd268838237f8cd66fa12c56706bdee8a61286
SHA512

24e494c64647794fc9aa91da6975117d27984b4bb21859dbf0c60faba5b7f0ec26c26ebbe1ad57f185e1d7ecd4b797d530639d287456ac9bc2930a111fd4613a
SSDEEP

24576:GnsJ39LyjbJkQFMhmC+6GD9gbU4+Il2L1ywD:GnsHyjtk2MYC5GD+P6

Score

10^/10

chaos xred backdoor discovery persistence ransomware

Malware Config

Extracted

Family

xred

xred.mooo.com

Attributes

email
[email protected]
payload_url
http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

http://xred.site50.net/syn/SUpdate.ini

https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

http://xred.site50.net/syn/Synaptics.rar

https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

http://xred.site50.net/syn/SSLLibrary.dll

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 4 IoCs

resource	yara_rule
behavioral1/files/0x0008000000023434-5.dat	family_chaos
behavioral1/files/0x000700000002343c-66.dat	family_chaos
behavioral1/memory/1876-119-0x0000000000750000-0x00000000007DC000-memory.dmp	family_chaos
behavioral1/memory/1852-130-0x0000000000400000-0x0000000000545000-memory.dmp	family_chaos

Chaos family
chaos
Xred
Xred is backdoor written in Delphi.
backdoor xred
Xred family
xred

Checks computer location settings 2 TTPs 4 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	Encrypt.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	._cache_Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	._cache_Encrypt.exe

Executes dropped EXE 5 IoCs

pid	Process
1876	._cache_Encrypt.exe
4724	Synaptics.exe
3428	._cache_Synaptics.exe
4144	svchost.exe
3756	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\????? = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	Encrypt.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Encrypt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Encrypt.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 5 IoCs

pid	Process
1876	._cache_Encrypt.exe
3428	._cache_Synaptics.exe
4144	svchost.exe
3756	svchost.exe
3872	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
3428	._cache_Synaptics.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
1876	._cache_Encrypt.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe
4144	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1876	._cache_Encrypt.exe
Token: SeDebugPrivilege	3428	._cache_Synaptics.exe
Token: SeDebugPrivilege	4144	svchost.exe
Token: SeDebugPrivilege	3756	svchost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE
3872	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 1876	1852	Encrypt.exe	87
PID 1852 wrote to memory of 1876	1852	Encrypt.exe	87
PID 1852 wrote to memory of 4724	1852	Encrypt.exe	88
PID 1852 wrote to memory of 4724	1852	Encrypt.exe	88
PID 1852 wrote to memory of 4724	1852	Encrypt.exe	88
PID 4724 wrote to memory of 3428	4724	Synaptics.exe	89
PID 4724 wrote to memory of 3428	4724	Synaptics.exe	89
PID 3428 wrote to memory of 4144	3428	._cache_Synaptics.exe	92
PID 3428 wrote to memory of 4144	3428	._cache_Synaptics.exe	92
PID 1876 wrote to memory of 3756	1876	._cache_Encrypt.exe	95
PID 1876 wrote to memory of 3756	1876	._cache_Encrypt.exe	95

C:\Users\Admin\AppData\Local\Temp\Encrypt.exe
"C:\Users\Admin\AppData\Local\Temp\Encrypt.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Users\Admin\AppData\Local\Temp\._cache_Encrypt.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_Encrypt.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1876
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of AdjustPrivilegeToken
    PID:3756
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4724
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3428
  - - C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: AddClipboardFormatListener
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4144

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Synaptics\Synaptics.exe

Filesize
1.2MB

MD5
8728ba233fcb020a6a2eaabb90df630c

SHA1
c6dc576f2e0423e8a0f36bba51fa7c65e1e281e7

SHA256
b15052d17afc1a01e83cdc0624dd268838237f8cd66fa12c56706bdee8a61286

SHA512
24e494c64647794fc9aa91da6975117d27984b4bb21859dbf0c60faba5b7f0ec26c26ebbe1ad57f185e1d7ecd4b797d530639d287456ac9bc2930a111fd4613a

Download Submit
C:\Users\Admin\AppData\Local\Temp\._cache_Encrypt.exe

Filesize
533KB

MD5
e7d91103647b76f121b854fe806f80e2

SHA1
e6adca5f83dfb2cca099cf18d6960d422b82bb9e

SHA256
04ed744d9643830fc5f0499203a6fde506b5f2c89868695bfe179a8edb3b28c0

SHA512
69dc672bfe3a89ebe71b8041159afab0231701ea59438feb1f000ddddf52627c1f7c6f36bd8c2f77f037dd2659e6ef8f27db283476dae228522051659f2f67b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\7EB75E00

Filesize
22KB

MD5
e21ffaa95e11633919c01eccd3205e5e

SHA1
c78135fded873e5573585d2634cd3f84d6560d23

SHA256
0b7328c081e45fe16d6bc83974f680877ad0358a0fb80bfa3b0f5756a23d3250

SHA512
e0a6805e91ad349e42995c14bd98d15a1fd2db65fb123cf3afaa7b53b16d9e34b34991ce69756581f4028979ccf211ab027524757706d2a2837c97b57b0083aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\BncRRvIl.xlsm

Filesize
17KB

MD5
e566fc53051035e1e6fd0ed1823de0f9

SHA1
00bc96c48b98676ecd67e81a6f1d7754e4156044

SHA256
8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

SHA512
a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

Download Submit
memory/1852-130-0x0000000000400000-0x0000000000545000-memory.dmp

Filesize
1.3MB

Download
memory/1852-0-0x00000000023F0000-0x00000000023F1000-memory.dmp

Filesize
4KB

Download
memory/1876-71-0x00007FFFF8B83000-0x00007FFFF8B85000-memory.dmp

Filesize
8KB

Download
memory/1876-119-0x0000000000750000-0x00000000007DC000-memory.dmp

Filesize
560KB

Download
memory/1876-133-0x00007FFFF8B80000-0x00007FFFF9641000-memory.dmp

Filesize
10.8MB

Download
memory/1876-206-0x00007FFFF8B80000-0x00007FFFF9641000-memory.dmp

Filesize
10.8MB

Download
memory/3872-207-0x00007FF7D6E50000-0x00007FF7D6E60000-memory.dmp

Filesize
64KB

Download
memory/3872-211-0x00007FF7D6E50000-0x00007FF7D6E60000-memory.dmp

Filesize
64KB

Download
memory/3872-210-0x00007FF7D6E50000-0x00007FF7D6E60000-memory.dmp

Filesize
64KB

Download
memory/3872-212-0x00007FF7D44F0000-0x00007FF7D4500000-memory.dmp

Filesize
64KB

Download
memory/3872-213-0x00007FF7D44F0000-0x00007FF7D4500000-memory.dmp

Filesize
64KB

Download
memory/3872-209-0x00007FF7D6E50000-0x00007FF7D6E60000-memory.dmp

Filesize
64KB

Download
memory/3872-208-0x00007FF7D6E50000-0x00007FF7D6E60000-memory.dmp

Filesize
64KB

Download