blackcat | 0c45c897727f41756135602f47ecd65c7c76b485412832e4b16fe2e3e53f85a0

Analysis

max time kernel
78s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
29-03-2023 13:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bc0012fddc7c1f4083ef15ae10e12b9327a57852b054930f7fdab41cf346e72a.exe
Size

7.0MB
MD5

2891ec6365b7b0ef90899a35e4f2f747
SHA1

a96b6dbe89c2b3a0ee8d6a0b10eeb6e7cb693106
SHA256

bc0012fddc7c1f4083ef15ae10e12b9327a57852b054930f7fdab41cf346e72a
SHA512

cffd540f7d50f13fa846d8febd9ed53dd0af24067a461f5bf663c331b20ae9004b9346ef5e6c39efbe98d933f3d7c143acf6742ff3414d4920d721b7906e4bb7
SSDEEP

98304:449zph6fjINhtvLCVktAB6s43rUJ+BUA8Uf0ZE5KJW3:X9Fh6fjGhtvul943rUMBUA/0ZcKJ

Score

10^/10

blackcat ransomware

Malware Config

Signatures

BlackCat
A Rust-based ransomware sold as RaaS first seen in late 2021.
ransomware blackcat

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Modifies registry class 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1740	msedge.exe
1740	msedge.exe
3680	msedge.exe
3680	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

pid	Process
3680	msedge.exe
3680	msedge.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3680	msedge.exe
3680	msedge.exe
3680	msedge.exe
3680	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 732	3680	msedge.exe	93
PID 3680 wrote to memory of 732	3680	msedge.exe	93
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1292	3680	msedge.exe	94
PID 3680 wrote to memory of 1740	3680	msedge.exe	95
PID 3680 wrote to memory of 1740	3680	msedge.exe	95
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96
PID 3680 wrote to memory of 4852	3680	msedge.exe	96

C:\Users\Admin\AppData\Local\Temp\bc0012fddc7c1f4083ef15ae10e12b9327a57852b054930f7fdab41cf346e72a.exe
"C:\Users\Admin\AppData\Local\Temp\bc0012fddc7c1f4083ef15ae10e12b9327a57852b054930f7fdab41cf346e72a.exe"
1⤵
PID:3612

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\ResizeFind.htm
1⤵
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3680
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ffb35bd46f8,0x7ffb35bd4708,0x7ffb35bd4718
  2⤵
  PID:732
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2104,9839644759903880227,6385940078417649808,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2120 /prefetch:2
  2⤵
  PID:1292
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2104,9839644759903880227,6385940078417649808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2216 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1740
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2104,9839644759903880227,6385940078417649808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2644 /prefetch:8
  2⤵
  PID:4852
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,9839644759903880227,6385940078417649808,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3536 /prefetch:1
  2⤵
  PID:4228
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,9839644759903880227,6385940078417649808,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3528 /prefetch:1
  2⤵
  PID:4908

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
cd4f5fe0fc0ab6b6df866b9bfb9dd762

SHA1
a6aaed363cd5a7b6910e9b3296c0093b0ac94759

SHA256
3b803b53dbd3d592848fc66e5715f39f6bc02cbc95fb2452cd5822d98c6b8f81

SHA512
7072630ec28cf6a8d5b072555234b5150c1e952138e5cdc29435a6242fda4b4217b81fb57acae927d2b908fa06f36414cb3fab35110d63107141263e3bba9676

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
1d40312629d09d2420e992fdb8a78c1c

SHA1
903950d5ba9d64ec21c9f51264272ca8dfae9540

SHA256
1e7c6aa575c3ec46cd1fdf6df51063113d277012ed28f5f6b37aea95cd3a64ac

SHA512
a7073247ae95e451ed32ceeae91c6638192c15eaad718875c1272eff51c0564016d9f84690543f27df509a7d579de329d101fbf82fed7cbeb27af57393de24ac

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Edge Profile.ico

Filesize
70KB

MD5
e5e3377341056643b0494b6842c0b544

SHA1
d53fd8e256ec9d5cef8ef5387872e544a2df9108

SHA256
e23040951e464b53b84b11c3466bbd4707a009018819f9ad2a79d1b0b309bc25

SHA512
83f09e48d009a5cf83fa9aa8f28187f7f4202c84e2d0d6e5806c468f4a24b2478b73077381d2a21c89aa64884df3c56e8dc94eb4ad2d6a8085ac2feb1e26c2ef

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Microsoft Edge.lnk

Filesize
2KB

MD5
cd7b9acf12bbd6c2348f8e3370139b09

SHA1
10eabd5a2e33d6e8c22158024ee467064f6c0617

SHA256
e728de00f564d2d56bdffdb2cd4637126407a959650ec0647c04983363696dc6

SHA512
b9258e7ee44a80a8dc9975568e3ac3566dc2ed2b4d362d24b4eb349c9e28889e2f12e893c2b3dc63a9b782e609fabe342ca36ecb6217ac312d8d38ffc75dfcb9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State

Filesize
111B

MD5
285252a2f6327d41eab203dc2f402c67

SHA1
acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

SHA256
5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

SHA512
11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
4KB

MD5
fa131f8ea300df8e3aa01008b78f37f7

SHA1
97afc5209d1d82d4a7b1f83c0a57429efe382123

SHA256
518e158d8ccd166ac2b661b9521bddad86d4d5776694d7b11b34b84911d115e4

SHA512
73f05badbd12ee002cd9b76df4642ee9fdbdd951f0d2d663fc10cc52c5159240067fe97a65bd9ba16796e5da922c8d88efffeb63df776b1ce269ef2f812cc210

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
5KB

MD5
8946ca1470c6f56901162dc715cea125

SHA1
fefb0586876fd30d3fdb4795ea3ddf2de86ce95f

SHA256
8e6fa76ab8b29af6856b47417f86709bfb95abb9ff6202d392d3e0c6bbd774f6

SHA512
6e1f068ecfc5ab075b931b421b1fd25c0c0f416dd61f8e58a7b445c3caf89c5f8802755d94d70915fcd482dfacfc34957facdbd51c05b16d98f70d45df760baa

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences

Filesize
24KB

MD5
1463bf2a54e759c40d9ad64228bf7bec

SHA1
2286d0ac3cfa9f9ca6c0df60699af7c49008a41f

SHA256
9b4fd2eea856352d8fff054b51ea5d6141a540ca253a2e4dc28839bc92cbf4df

SHA512
33e0c223b45acac2622790dda4b59a98344a89094c41ffdb2531d7f1c0db86a0ea4f1885fea7c696816aa4ceab46de6837cc081cd8e63e3419d9fcb8c5a0eb66

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Session Storage\CURRENT

Filesize
16B

MD5
46295cac801e5d4857d09837238a6394

SHA1
44e0fa1b517dbf802b18faf0785eeea6ac51594b

SHA256
0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

SHA512
8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\shared_proto_db\MANIFEST-000001

Filesize
41B

MD5
5af87dfd673ba2115e2fcf5cfdb727ab

SHA1
d5b5bbf396dc291274584ef71f444f420b6056f1

SHA256
f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4

SHA512
de34583a7dbafe4dd0dc0601e8f6906b9bc6a00c56c9323561204f77abbc0dc9007c480ffe4092ff2f194d54616caf50aecbd4a1e9583cae0c76ad6dd7c2375b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\GrShaderCache\GPUCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

Filesize
9KB

MD5
442a4fc6a07b7a4f923bdeaa13713f8a

SHA1
ab48d965652660a5e5c654f2d8ca23cdb4f40b67

SHA256
0b363dc0d7d357d66e3844639b15511149710483a27e12ffdc269efed366498a

SHA512
8c450ac1f1ded261e3e333bb1ecb180658ee7ca7c257ede40bb382abdcc46215aadeee108991db602d9c50ca1fbb2dfd28cccdac17e0e0f5471bc1b894c18bab

Download Submit
memory/3612-133-0x0000000000F90000-0x000000000169D000-memory.dmp

Filesize
7.1MB

Download