MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b2b44e75af97818567245e31eeb685c4e65632cab9115516aaaa30b43daa28b7. 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
BitRAT
Vendor detections: 14
| SHA256 hash: | b2b44e75af97818567245e31eeb685c4e65632cab9115516aaaa30b43daa28b7 |
|---|---|
| SHA3-384 hash: | 90ffd2b01190674a6535a305bb08a3cc06f211ce0883fdb238054bc75c78621c436c0eb9ceb1d480e7a331e7c0b9d1a1 |
| SHA1 hash: | 37053a650427b01138085f77f5000d754104cd8d |
| MD5 hash: | 23c8eb156f6124878f21cf5c98c18071 |
| humanhash: | alabama-double-oklahoma-mirror |
| File name: | 23c8eb156f6124878f21cf5c98c18071 |
| Download: | download sample |
| Signature | BitRAT |
| File size: | 632'206 bytes |
| First seen: | 2021-10-07 16:31:30 UTC |
| Last seen: | 2021-10-07 19:06:52 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 903119b637f155dd7ab6c6a49ae6012a (4 x BitRAT, 1 x AgentTesla, 1 x AsyncRAT) |
| ssdeep | 6144:pC4w8juap56y9dg4sIo9ZCf6YRZDYnDSb+Ox72aR914w6Fs2gVKiEgvaratgMZ:8napvg4sz9dYRZsDy+M70sdpEaar3MZ |
| Threatray | 5'774 similar samples on MalwareBazaar |
| TLSH | T182D4D37C256A5E48F3A494BCB6B58DFF27A0BC1F45A7B4F3900CB1D70AB9BD05502226 |
| File icon (PE): |  |
| dhash icon | f0d4b2d1d8b0d0f0 (20 x BitRAT, 11 x AsyncRAT, 4 x QuasarRAT) |
| Reporter |  zbetcheckin |
| Tags: | 32 BitRAT exe |
Intelligence
File Origin
# of uploads :
2
# of downloads :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Inquiry 001742021.doc
Verdict:
Malicious activity
Analysis date:
2021-10-07 13:23:30 UTC
Tags:
exploit CVE-2017-11882 loader trojan rat asyncrat
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
asyncrat
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Launching a process
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
asyncrat overlay packed packed
Malware family:
AsyncRAT
Verdict:
Malicious
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.AsyncRAT
Status:
Malicious
First seen:
2021-10-07 07:43:56 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 5'764 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Score:
10/10
Tags:
family:asyncrat botnet:1 persistence rat
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
185.157.160.136:1973
Unpacked files
SH256 hash:
b12c23c4a18f6d268dd67bfaae2b4271303d52cc64316b5ba5ef1b01df9efc42
MD5 hash:
bf1c14a3d9fda5210b155fe685adfe84
SHA1 hash:
8973e0f877db3dcd8de601df3f6d5143c55ecaaf
Detections:
win_asyncrat_w0
SH256 hash:
72b842141069b6cb4a7af7401ce19fd5e76874064a94b09449a2888e0348cc0b
MD5 hash:
6c282646b74671bf9c99361d238dfda7
SHA1 hash:
04f8188971d766a5fe649a79b98c82359f9de9f4
SH256 hash:
b2b44e75af97818567245e31eeb685c4e65632cab9115516aaaa30b43daa28b7
MD5 hash:
23c8eb156f6124878f21cf5c98c18071
SHA1 hash:
37053a650427b01138085f77f5000d754104cd8d
Malware family:
AsyncRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | asyncrat |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect AsyncRat in memory |
| Reference: | internal research |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse |
|---|---|
| Author: | ditekSHen |
| Description: | Detects file containing reversed ASEP Autorun registry keys |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_asyncrat_j1 |
|---|---|
| Author: | Johannes Bader @viql |
| Description: | detects AsyncRAT |
| Rule name: | win_asyncrat_w0 |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect AsyncRat in memory |
| Reference: | internal research |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
Comments
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