MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 410ab8ce38a5fd9868cfa4a023a7f28647ce1c8c44501f13ec8fe3040d7a85c5. 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: 11


Intelligence 11 IOCs 1 YARA 7 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 410ab8ce38a5fd9868cfa4a023a7f28647ce1c8c44501f13ec8fe3040d7a85c5
SHA3-384 hash: c24bbf83694686b5712507afb32a8b240d088e99b84877ce4614076768d577d413286a1cab197401b1af5f3262cd0210
SHA1 hash: 658ea81077bc0e34ccee8fd3bab20afd4732ad5c
MD5 hash: 0e83d349cb22dd753d10f234c2abf20b
humanhash: sierra-georgia-alabama-princess
File name:RFQ EMFA Elektrik.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:173'168 bytes
First seen:2021-05-24 09:31:18 UTC
Last seen:2021-05-24 10:01:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 3072:8QIURTXJSM4Pl7gtWxpgxwdVj6AaHZXJGu4Hw9fc/51nUH2KrA8wb5QtkDHBSWEg:8sB+h/zyzGx2oLUH2KsQ2oWEpq
Threatray 2'259 similar samples on MalwareBazaar
TLSH 2504124D62C5E43BF84649B01AB7F77DE3BFAB051A9169B30F241FBE28260934E0D552
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
79.134.225.75:2050

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
79.134.225.75:2050 https://threatfox.abuse.ch/ioc/58176/

Intelligence

File Origin
# of uploads :
2
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ EMFA Elektrik.exe
Verdict:
Malicious activity
Analysis date:
2021-05-24 09:32:13 UTC
Tags:
installer trojan rat asyncrat
Link:
https://app.any.run/tasks/d4f0de66-a1b6-48bf-961a-f9282f42ca7f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/161345/
Detection(s):
PUA.Win.Trojan.Casino-141
Create hunting rule

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
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Launching a process
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Sending a TCP request to an infection source
Enabling autorun by creating a file
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.
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/790207
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 422603 Sample: RFQ EMFA Elektrik.exe Startdate: 24/05/2021 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Found malware configuration 2->59 61 Detected unpacking (changes PE section rights) 2->61 63 4 other signatures 2->63 8 ykntrjgqttgmnn.exe 18 2->8         started        12 RFQ EMFA Elektrik.exe 1 23 2->12         started        14 micosoft2.exe 16 2->14         started        process3 file4 47 C:\Users\user\AppData\Local\...\System.dll, PE32 8->47 dropped 67 Detected unpacking (changes PE section rights) 8->67 69 Detected unpacking (overwrites its own PE header) 8->69 71 Machine Learning detection for dropped file 8->71 16 ykntrjgqttgmnn.exe 3 8->16         started        49 C:\Users\user\AppData\...\ykntrjgqttgmnn.exe, PE32 12->49 dropped 51 C:\Users\user\AppData\Local\...\System.dll, PE32 12->51 dropped 73 Maps a DLL or memory area into another process 12->73 19 RFQ EMFA Elektrik.exe 7 12->19         started        signatures5 process6 dnsIp7 53 79.134.225.75, 2050, 49743 FINK-TELECOM-SERVICESCH Switzerland 16->53 55 192.168.2.1 unknown unknown 16->55 22 cmd.exe 16->22         started        43 C:\Users\user\AppData\Roaming\micosoft2.exe, PE32 19->43 dropped 45 C:\Users\user\...\RFQ EMFA Elektrik.exe.log, ASCII 19->45 dropped 24 cmd.exe 1 19->24         started        27 cmd.exe 1 19->27         started        file8 process9 signatures10 29 conhost.exe 22->29         started        31 schtasks.exe 22->31         started        65 Uses schtasks.exe or at.exe to add and modify task schedules 24->65 33 conhost.exe 24->33         started        35 schtasks.exe 1 24->35         started        37 micosoft2.exe 16 27->37         started        39 conhost.exe 27->39         started        41 timeout.exe 1 27->41         started        process11
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/410ab8ce38a5fd9868cfa4a023a7f28647ce1c8c44501f13ec8fe3040d7a85c5/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ieflrtryux6zq2gpusqchj7sqzd44hemirib6e7mr7rqidl2qxcq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
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AsyncRAT
2edc93f84e6911e5b86040964715868c82eb28c2b48cdbb2c72dee60cfe2f792
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3464d5b88ea3f3d4c0c8735e681f8514f6a7abc9039f1f3372340f7513f3448e
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4d13e663aebabe2376c4f231356688108b5a124e0aafbc1717efa9f82e23f2b2
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74d5a7052ca7168700158a9f7c8c15f37c99355e1b84dc5a73724d605bd35604
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7da044c42ca2197b24b974350ae45f50ba9573714685c175026ff4a29a57973b
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86b22d8497ac1df55b76bddca6c021ec4b9995b00caea5effeeffe4e9f592e44
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9ee67445d4ffeedd7c11e1e14949bf0f6060f34352e3f2c8d2184ffe0b4d235f
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ddaaa650d42caaed5ddd7c307b986cdccfc25bcb84c7a4f29f9fddd26add4135
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eb918b8f920a7f710cbd2460ba6132a177996912cc0ef6144ac824e3e37e4fdb
AsyncRAT
+ 2'249 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat persistence rat
Link:
https://tria.ge/reports/210524-kv8t11kwtj/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
79.134.225.75:2050
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/410ab8ce38a5fd9868cfa4a023a7f28647ce1c8c44501f13ec8fe3040d7a85c5

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:pe_imphash
Create hunting rule
Rule name:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/161345/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-24 09:59:33 UTC

============================================================
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