Analysis
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max time kernel
63s -
max time network
66s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
11-11-2024 17:18
General
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Target
c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da.7z
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Size
320KB
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MD5
0ae1786f245b0f9f3c56b840f9e66ca4
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SHA1
5f169c9e72799cef0f6b2d6b16b05822a76b829b
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SHA256
eb5965f0e5dfe75357019ecc6e18b231b44d32c6d2f5fbf92c15020090e9120d
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SHA512
dde9821026628656442202190ce56dd9497aaa364339fc32e4368c7d2dccc474543f37ef8f62afbbf3288b53e89e8afc27839b12dc4aafdcc77ef01ef879288a
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SSDEEP
6144:MaQ0EImY93tS6MK3RqnllYePv3Buo91IOmrI6Uu4gDD6nZ+clLQHYejbU7eXA7Ez:fES938U3RqbYavPHmkmDPyLQHVXBz
Malware Config
Extracted
blackmatter
2.0
a89e0e2e31db3e31a1e7a9630375f437
https://fluentzip.org
http://fluentzip.org
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attempt_auth
false
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create_mutex
true
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encrypt_network_shares
true
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exfiltrate
true
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mount_volumes
true
Extracted
F:\3e2hz8xh7.README.txt
blackmatter
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/O1E1HJ9H8JNKNNHC8
Signatures
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BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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Blackmatter family
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Renames multiple (142) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 2 IoCs
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Suspicious use of AdjustPrivilegeToken 25 IoCs
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Suspicious use of FindShellTrayWindow 61 IoCs
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Suspicious use of SendNotifyMessage 58 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da.7z"1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "-Command" "if((Get-ExecutionPolicy ) -ne 'AllSigned') { Set-ExecutionPolicy -Scope Process Bypass }; & 'C:\Users\Admin\Desktop\c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da.ps1'"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -ex bypass -NonI C:\Users\Admin\Desktop\c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da.ps12⤵
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\3e2hz8xh7.README.txt1⤵
- Opens file in notepad (likely ransom note)
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD52a10b0e0460456e3f790c70d391b0cd8
SHA144d713a33d929c08a3b7e47b793b191285da1df5
SHA2564f699221651c4ec3b9ce8d8e62b3812f13d3634f3e5c54c0e0e771aa54e2c0bc
SHA5128007008c7c73373e2acd5f759fc976a7e818d8b0b582a4c47be37c40c1e16f82a184e353aee3f8686188b257fc22be74784c4d02b19b3b6f5333623115860ec6
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
915KB
MD5001bfe6f72fe64660ba498107c658bdc
SHA10946baf23e867f2564302b60f777db72a1244a30
SHA256c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da
SHA51232836eff8285a5a301be0b4410d34a73d99d4c04b38b0b67b937c1bc5ae6ab2d033a97089b6588c245371dfd8e95c420c8bbd3862a632a828122861e0ec839d3
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Filesize
1KB
MD50418b5109e0dd206abbab1579e3c9618
SHA140c28fc6d87411ba675abc0e441d74e6ab173b4e
SHA256da44a7bc46672b2187e0ad91c5bbb19fed30e63f7ca4a2f0f6c20f7435f9453f
SHA5129fcb20dec695dde76c6e2e96567f9d1103c81a77c4f1f7e0f7b2702489b448f9bb36cac511e736b53ef3775706ad839e80beb1555e0df6dbd17424f298be531e
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Filesize
68KB
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Filesize
100KB
-
Filesize
100KB
-
Filesize
100KB
-
Filesize
216KB
-
Filesize
6.2MB
-
Filesize
136KB
-
Filesize
408KB
-
Filesize
408KB
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Filesize
3.3MB
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Filesize
100KB
-
Filesize
120KB
-
Filesize
304KB
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Filesize
6.5MB
-
Filesize
100KB
-
Filesize
100KB
-
Filesize
100KB
-
Filesize
100KB
-
Filesize
32KB
-
Filesize
104KB
-
Filesize
80KB
-
Filesize
56KB
-
Filesize
100KB
-
Filesize
600KB
-
Filesize
3.3MB
-
Filesize
200KB
-
Filesize
304KB
-
Filesize
104KB
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Filesize
120KB
-
Filesize
652KB
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Filesize
40KB
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Filesize
4KB
-
Filesize
4KB
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Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
8KB
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Filesize
10.8MB
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Filesize
136KB
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Filesize
10.8MB
-
Filesize
10.8MB
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Filesize
10.8MB