MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1f4eaf985e503e9aeade9362fbf02edd1d6cec43b7c7df88cbff1420c017518e. 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: 10


Intelligence 10 IOCs YARA 15 File information Comments
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SHA256 hash: 1f4eaf985e503e9aeade9362fbf02edd1d6cec43b7c7df88cbff1420c017518e
SHA3-384 hash: 58c62faeb1dbb6fdf065f8c7de2d41a68a29d26798806ca03b11db2fb159c3ad3d3bf189f6518e41d1e99f00cec10f1f
SHA1 hash: 03a7abb9de4ecfe2141e3f40f63ad7e1b9fd1a14
MD5 hash: c97f8378ed37f8f709c7344634c6b5c1
humanhash: social-eleven-wolfram-arizona
File name:IMG-28375823759823 IMPORTANTE DETALLE Y SOPORTE JULIO 25.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:87'552 bytes
First seen:2022-07-25 23:06:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 1536:v487AEubsaPmYq4viGgpR2xbHDtyEIVlDu1233K3rgRJ8:v487AqJki5UHDtyE86233K3+8
TLSH T1AC83BE186300C16ECD898175C7A381F0B328DDD5C82356AB745FBF2D7E7A2A79929E02
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon cc862b757131b4f0 (1 x AsyncRAT, 1 x RiseProStealer, 1 x RecordBreaker)
Reporter 1ZRR4H
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
374
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
detalle de factura cancelada.msg
Verdict:
Malicious activity
Analysis date:
2022-07-25 20:06:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e2db61fa-b381-4234-86a8-8119743fe9cd

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/294144/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Gathering data
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a3227a12-b175-4b7c-ace5-8f7d9e40e41f
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1040740
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 673234 Sample: IMG-28375823759823 IMPORTAN... Startdate: 26/07/2022 Architecture: WINDOWS Score: 100 42 luispereiralora09.con-ip.com 2->42 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 Yara detected MSILDownloaderGeneric 2->54 56 6 other signatures 2->56 8 IMG-28375823759823 IMPORTANTE DETALLE Y SOPORTE JULIO 25.exe 16 7 2->8         started        13 chrome.exe 14 4 2->13         started        15 chrome.exe 3 2->15         started        signatures3 process4 dnsIp5 44 cdn.discordapp.com 162.159.134.233, 443, 49724 CLOUDFLARENETUS United States 8->44 36 C:\Users\user\AppData\Roaming\...\chrome.exe, PE32 8->36 dropped 38 C:\Users\user\...\chrome.exe:Zone.Identifier, ASCII 8->38 dropped 58 Encrypted powershell cmdline option found 8->58 60 Writes to foreign memory regions 8->60 62 Allocates memory in foreign processes 8->62 17 InstallUtil.exe 2 8->17         started        20 powershell.exe 16 8->20         started        46 162.159.133.233, 443, 49760 CLOUDFLARENETUS United States 13->46 64 Multi AV Scanner detection for dropped file 13->64 66 Injects a PE file into a foreign processes 13->66 22 powershell.exe 13->22         started        24 InstallUtil.exe 13->24         started        48 162.159.135.233, 443, 49761 CLOUDFLARENETUS United States 15->48 26 powershell.exe 15->26         started        28 InstallUtil.exe 15->28         started        file6 signatures7 process8 dnsIp9 40 luispereiralora09.con-ip.com 191.88.251.106, 1990 ColombiaMovilCO Colombia 17->40 30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 26->34         started        process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1f4eaf985e503e9aeade9362fbf02edd1d6cec43b7c7df88cbff1420c017518e/
Threat name:
Win32.Downloader.PsDownload
Create hunting rule
Status:
Malicious
First seen:
2022-07-25 23:07:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
21 of 26 (80.77%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=d5hk7gc6ka7jv2w6snrpx4bo3uowz3cdw7d57cgl74kcbqaxkgha._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/220725-23yxwsfbg6/
Behaviour
Suspicious use of AdjustPrivilegeToken
Unpacked files
SH256 hash:
1f4eaf985e503e9aeade9362fbf02edd1d6cec43b7c7df88cbff1420c017518e
MD5 hash:
c97f8378ed37f8f709c7344634c6b5c1
SHA1 hash:
03a7abb9de4ecfe2141e3f40f63ad7e1b9fd1a14
Link:
https://www.unpac.me/results/bac7be1e-f6a8-44dd-8a15-71fd96b21d67/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1f4eaf985e50/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/1f4eaf985e503e9aeade9362fbf02edd1d6cec43b7c7df88cbff1420c017518e

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:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
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/294144/

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