MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51e6527daa5a10028c434c7ceaed1570ddd95e1de0eafa702f77860cec3d0b7c. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 51e6527daa5a10028c434c7ceaed1570ddd95e1de0eafa702f77860cec3d0b7c
SHA3-384 hash: b2fea3be6a69da83193f92ff73fa4f3793782e3b4ff94639b9165d348181721d7ce4cba7ffa6c6c05c7e61d6484c9ebf
SHA1 hash: 455375b22493ac2a9b6cac7c76e741508c045369
MD5 hash: 1ac34f8055d611e65138df12cca6cc39
humanhash: lion-nitrogen-sink-lactose
File name:1ac34f8055d611e65138df12cca6cc39.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:426'272 bytes
First seen:2021-08-23 05:59:12 UTC
Last seen:2021-08-23 07:17:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:y9/uL7WLpFYQ9akff07EMoM5AfLJ82k+baoNwL42rO:y9M79OftvzJhk+WoNwL42rO
Threatray 185 similar samples on MalwareBazaar
TLSH T15094A1422AFF4683F354D53089CF7D244799BD92B63192FE3A28718C99D1332995C3AE
dhash icon 949a8e8ea68e8a9e (1 x AsyncRAT, 1 x CoinMiner)
Reporter abuse_ch
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1ac34f8055d611e65138df12cca6cc39.exe
Verdict:
Malicious activity
Analysis date:
2021-08-23 06:01:52 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b0e89154-3f75-497d-ae10-d68cf8fee16f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/181357/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader41.16831.26541.7825.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Sending a UDP request
Creating a process from a recently created file
DNS request
Connection attempt
Sending a custom TCP request
Unauthorized injection to a recently created process
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/53404cba-985d-484d-ae38-3081d2bf2225
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/837256
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Connects to a pastebin service (likely for C&C)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 469687 Sample: x7AwL2FI1Q.exe Startdate: 23/08/2021 Architecture: WINDOWS Score: 72 34 4.tcp.ngrok.io 2->34 42 Multi AV Scanner detection for submitted file 2->42 44 .NET source code contains method to dynamically call methods (often used by packers) 2->44 46 .NET source code references suspicious native API functions 2->46 48 Connects to a pastebin service (likely for C&C) 2->48 8 x7AwL2FI1Q.exe 7 2->8         started        11 JavaUpdater.exe 14 2 2->11         started        signatures3 process4 dnsIp5 30 C:\Users\user\AppData\...\JavaUpdater.exe, PE32 8->30 dropped 32 C:\Users\user\AppData\...\x7AwL2FI1Q.exe.log, ASCII 8->32 dropped 15 cmd.exe 1 8->15         started        18 cmd.exe 1 8->18         started        36 pastebin.com 104.23.98.190, 443, 49705 CLOUDFLARENETUS United States 11->36 38 4.tcp.ngrok.io 3.129.187.220, 11296, 49706, 49711 AMAZON-02US United States 11->38 40 3 other IPs or domains 11->40 50 Multi AV Scanner detection for dropped file 11->50 file6 signatures7 process8 signatures9 52 Uses schtasks.exe or at.exe to add and modify task schedules 15->52 20 conhost.exe 15->20         started        22 schtasks.exe 1 15->22         started        24 JavaUpdater.exe 3 18->24         started        26 conhost.exe 18->26         started        28 timeout.exe 1 18->28         started        process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/51e6527daa5a10028c434c7ceaed1570ddd95e1de0eafa702f77860cec3d0b7c/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2021-08-20 01:47:58 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Verdict:
unknown
Similar samples:
414a79e6c87489cb73e9176e867d554788a28ba86cb4e00f3f8fed15400999bd
AsyncRAT
7f1cd16cd2d2e5644752a3e0fd411c3902bad47051779d5bd539e9650f53787c
AsyncRAT
87f4a4c323f26710b7acdc123173fa63f4ccb4f3c8239dfaa489ee69ab89f7cc
AsyncRAT
88614f9e923a5d979c64bee190f05f0932bc01f351ded417c59e1b2a92be560b
AsyncRAT
89aea7429e8634bbba4d97c8576adb9568cdf91830d15ecd2c34c5a290f7b83f
AsyncRAT
a0710f6483cebd22f615c3435ee70a971d490f15c9529c3f2450e3cb73d35a16
AsyncRAT
f60f32ec899bcb92fd50491a8c32f0548afbd4dc02462dfa373d484b4b161a86
AsyncRAT
ffec1862f56857ad722abbcb98be7af86f2cf0763371bcb40273f0d884157c32
AsyncRAT
+ 175 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/210823-1rrrbpf1ss/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Legitimate hosting services abused for malware hosting/C2
Executes dropped EXE
Async RAT payload
AsyncRat
Unpacked files
SH256 hash:
51e6527daa5a10028c434c7ceaed1570ddd95e1de0eafa702f77860cec3d0b7c
MD5 hash:
1ac34f8055d611e65138df12cca6cc39
SHA1 hash:
455375b22493ac2a9b6cac7c76e741508c045369
Link:
https://www.unpac.me/results/c16888be-7ae3-428b-93d0-66210a59b61f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/51e6527daa5a10028c434c7ceaed1570ddd95e1de0eafa702f77860cec3d0b7c

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/181357/

Comments