MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 74d5a7052ca7168700158a9f7c8c15f37c99355e1b84dc5a73724d605bd35604. 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
AsyncRAT
Vendor detections: 9
| SHA256 hash: | 74d5a7052ca7168700158a9f7c8c15f37c99355e1b84dc5a73724d605bd35604 |
|---|---|
| SHA3-384 hash: | e44cba09cd5cf17f84be04fb90a490b4c6643918af26f2619f7a9425bd590792b2d94d9d356e1b25bb279cca3b2e4c3d |
| SHA1 hash: | 1ef6bfa9f3c1e60e9ce0fd091a1b221df6f2a90c |
| MD5 hash: | ef9bf837f60b80b7a3ecd7ace322a9eb |
| humanhash: | bluebird-black-nebraska-winner |
| File name: | ef9bf837_by_Libranalysis |
| Download: | download sample |
| Signature | AsyncRAT |
| File size: | 177'605 bytes |
| First seen: | 2021-05-19 10:02:26 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla) |
| ssdeep | 3072:5QIURTXJjxMm3VS1FakpUWyxWsr88K4b8uJpqrmT7NQdHjC7:5swm3V+fUWqNb88qruiDC7 |
| Threatray | 2'168 similar samples on MalwareBazaar |
| TLSH | 3E04F241F0F49433F19F1DB01576AF7AF3B9A305A1694247A339FFA92E724C29125C8A |
| Reporter |  Libranalysis |
| Tags: | AsyncRAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 79.134.225.17:2050 | https://threatfox.abuse.ch/ioc/8772/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ef9bf837_by_Libranalysis
Verdict:
Malicious activity
Analysis date:
2021-05-19 10:27:53 UTC
Tags:
installer trojan rat asyncrat
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a file
Sending a UDP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Gathering data
Threat name:
Win32.Trojan.Remcos
Status:
Malicious
First seen:
2021-05-19 10:03:12 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
22 of 26 (84.62%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
asyncrat
Similar samples:
+ 2'158 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Score:
10/10
Tags:
family:asyncrat persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
79.134.225.17:2050
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | Reverse_text_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Reverse text detected |
| 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.
Comments
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0032.001] Data Micro-objective::CRC32::Checksum
1) [C0026.002] Data Micro-objective::XOR::Encode Data
3) [C0045] File System Micro-objective::Copy File
4) [C0046] File System Micro-objective::Create Directory
5) [C0048] File System Micro-objective::Delete Directory
6) [C0047] File System Micro-objective::Delete File
7) [C0049] File System Micro-objective::Get File Attributes
8) [C0051] File System Micro-objective::Read File
9) [C0050] File System Micro-objective::Set File Attributes
10) [C0052] File System Micro-objective::Writes File
11) [E1510] Impact::Clipboard Modification
12) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
13) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
14) [C0036.007] Operating System Micro-objective::Delete Registry Value::Registry
15) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
16) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
17) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
18) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
19) [C0017] Process Micro-objective::Create Process
20) [C0038] Process Micro-objective::Create Thread
21) [C0018] Process Micro-objective::Terminate Process