MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
Rook
Vendor detections: 7
| SHA256 hash: | f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789 |
|---|---|
| SHA3-384 hash: | 8a934b9eaa135859123046d4cf23a28b63958483696dd35d237f2bee71ccda4352a40ebdace64a854c28ba7f97a15e8e |
| SHA1 hash: | 104d9e31e34ba8517f701552594f1fc167550964 |
| MD5 hash: | bec9b3480934ce3d30c25e1272f60d02 |
| humanhash: | low-wolfram-william-tennessee |
| File name: | f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.bin |
| Download: | download sample |
| Signature | Rook |
| File size: | 174'080 bytes |
| First seen: | 2021-11-30 21:36:24 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 1a1ed0f2924f52793563f4386019f927 (1 x Rook) |
| ssdeep | 3072:nsrZT+tEvzxoZy6ND3kKhuUSPqQzs+yhWhIqtlMlQDUUdgoa4:nEju7kKYUgqf+CWuqtlMAt |
| Threatray | 1 similar samples on MalwareBazaar |
| TLSH | T18D0412DF9982DE17C16987BC012556E8D89C3192AFFC63302497EC9F7F7B6185A0281A |
| Reporter |  Arkbird_SOLG |
| Tags: | exe Ransomware rook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
385
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.bin
Verdict:
No threats detected
Analysis date:
2021-11-30 21:38:04 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file
Changing a file
Searching for synchronization primitives
Launching a service
DNS request
Moving of the original file
Creating a file in the mass storage device
Deleting volume shadow copies
Forced shutdown of a browser
Encrypting user's files
Verdict:
Suspicious
Threat level:
5/10
Confidence:
67%
Tags:
babuk filecoder packed sodinokibi
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Result
Threat name:
Rook
Detection:
malicious
Classification:
rans.evad
Score:
88 / 100
Signature
Deletes itself after installation
Deletes shadow drive data (may be related to ransomware)
Found Tor onion address
May disable shadow drive data (uses vssadmin)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
Yara detected Rook Ransomware
Behaviour
Behavior Graph:
Threat name:
Win64.Ransomware.RookCrypt
Status:
Malicious
First seen:
2021-11-26 19:29:09 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
25 of 45 (55.56%)
Threat level:
5/5
Verdict:
malicious
Result
Malware family:
n/a
Score:
10/10
Tags:
ransomware upx
Behaviour
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Enumerates connected drives
Deletes itself
Modifies extensions of user files
Deletes shadow copies
Unpacked files
SH256 hash:
f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789
MD5 hash:
bec9b3480934ce3d30c25e1272f60d02
SHA1 hash:
104d9e31e34ba8517f701552594f1fc167550964
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.30
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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