MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb. 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


AgentTesla


Vendor detections: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb
SHA3-384 hash: faa4de730cd35cf00729664ae3d350ef81a78b96b590efcc6c67da300c52284bf3441a0ccca07fa72ad1bcd63586aec0
SHA1 hash: 323bc8880d3a66a20299e22ca119571c354bf185
MD5 hash: dc160ee6134fec5c35d7af4049d4e776
humanhash: uniform-mirror-india-kentucky
File name:AWB 5331810787.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'075'200 bytes
First seen:2023-11-20 08:50:41 UTC
Last seen:2023-11-20 08:50:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:Dp1l5bd+TsY5PWnFxdysc6pBxQmDb6+EGPr5CP3WDUjmEV2:thLnFzysc6rCmDbKGPrI+DUZ
TLSH T1F735DEB461A4C796D3799BFF646744301B636C1A65B1C39D3EBE30C90DA1B834A80EB7
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
293
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
AWB 5331810787.exe
Verdict:
Malicious activity
Analysis date:
2023-11-20 08:53:30 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/23bc1704-3e15-4eb9-8bdc-0834c908aa4b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/459273/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/de44b4fe-47aa-46de-8cdf-528469b2493d
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1345055
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1345055 Sample: AWB_5331810787.exe Startdate: 20/11/2023 Architecture: WINDOWS Score: 100 41 geoplugin.net 2->41 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 11 other signatures 2->53 8 DecEZooOgCQmk.exe 5 2->8         started        11 AWB_5331810787.exe 7 2->11         started        signatures3 process4 file5 55 Antivirus detection for dropped file 8->55 57 Multi AV Scanner detection for dropped file 8->57 59 Contains functionality to bypass UAC (CMSTPLUA) 8->59 67 7 other signatures 8->67 14 schtasks.exe 1 8->14         started        16 DecEZooOgCQmk.exe 8->16         started        18 DecEZooOgCQmk.exe 8->18         started        20 DecEZooOgCQmk.exe 8->20         started        37 C:\Users\user\AppData\...\DecEZooOgCQmk.exe, PE32 11->37 dropped 39 C:\Users\user\AppData\Local\...\tmp803C.tmp, XML 11->39 dropped 61 Uses schtasks.exe or at.exe to add and modify task schedules 11->61 63 Adds a directory exclusion to Windows Defender 11->63 65 Injects a PE file into a foreign processes 11->65 22 AWB_5331810787.exe 3 14 11->22         started        25 powershell.exe 23 11->25         started        27 schtasks.exe 1 11->27         started        signatures6 process7 dnsIp8 29 conhost.exe 14->29         started        43 91.92.242.85, 4285, 49710 THEZONEBG Bulgaria 22->43 45 geoplugin.net 178.237.33.50, 49712, 80 ATOM86-ASATOM86NL Netherlands 22->45 31 conhost.exe 22->31         started        33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-16 07:23:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=incwzknexm7ak4bbdrisbsxtrf2w6kryu3odqkieogq7ldu7xp5q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:admin rat
Link:
https://tria.ge/reports/231120-kr6d6aeg48/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
91.92.242.85:4285
Unpacked files
SH256 hash:
bcb144b1e85541925d830bdeebfa4c23a2fa0827793e3134f6690f1ec0c51b17
MD5 hash:
fd6596cc0e9976cee5444a6fe203ef4f
SHA1 hash:
eec8b2fa20d4481b3d6201418cecb91ab02b0330
Link:
https://www.unpac.me/results/c5cb4ed4-544e-454e-9a74-3ba4e0bf38cf/
SH256 hash:
76482f1dc9b0639dd6b2d762e09101875e207e8c60e146a43ca182a4c13d6afa
MD5 hash:
9561bc00330bfa400784c1b3b2075d0b
SHA1 hash:
b98f0014f428085dea5ea44108d64d9119e3d698
Link:
https://www.unpac.me/results/c5cb4ed4-544e-454e-9a74-3ba4e0bf38cf/
SH256 hash:
64f33c877665a23c6b1c183c2250c798a3672254866271bb6ae52238e789e06e
MD5 hash:
cf27091a7430f64bf44ae07079c25b0a
SHA1 hash:
b50f596591182cb21a9278c7cedf3ba237f03ff8
Link:
https://www.unpac.me/results/c5cb4ed4-544e-454e-9a74-3ba4e0bf38cf/
SH256 hash:
2591f182342ee9cd09d56338892d140c7eb901fa5bbe693783ca06cfc8d244fc
MD5 hash:
0d87a6677134a7d3fd5bd34b03ee4be2
SHA1 hash:
5cc34db166e7aac14c8251a9930c8f9a36b21b9c
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/c5cb4ed4-544e-454e-9a74-3ba4e0bf38cf/
Parent samples :
43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb
7577b9bf9939eb0865359788ce1f0d96eee3f79d401e5fa8ebb3e05d507f46d1
f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251
0f9412ecf0cc7aed883fb1dadd80dbd59115b20ad5076b79854ec07e062b00f3
bd4d24cb135194ab4f43d8b8d93ea81b73dad049a686577eb385a00195e69dbd
SH256 hash:
43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb
MD5 hash:
dc160ee6134fec5c35d7af4049d4e776
SHA1 hash:
323bc8880d3a66a20299e22ca119571c354bf185
Link:
https://www.unpac.me/results/c5cb4ed4-544e-454e-9a74-3ba4e0bf38cf/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/43456ca9a4bb/report/overview.html
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/43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
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.

Malspam

AgentTesla

Executable exe 43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459273/

Comments