MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cdb83c1ac7057ef8cc61946d1cb4161d53339bdf21d14534bcfbcf8f846d326f. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cdb83c1ac7057ef8cc61946d1cb4161d53339bdf21d14534bcfbcf8f846d326f
SHA3-384 hash: 21689e93b183d11b82422a7d017d1477e17fdb1e70c5df4bf1cc29b5014e60c88a79a706a4ee02b61c2a65b4b9a9ebd4
SHA1 hash: 7e2cf326a3ff422065e849dce02227c45d034a1f
MD5 hash: 0dc5f946f5368e3bc1ef371b63470102
humanhash: blossom-winter-orange-princess
File name:URGENT REQUEST.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:974'848 bytes
First seen:2022-08-17 10:00:58 UTC
Last seen:2022-09-01 19:16:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:h7yvCGmbjjd7X1Wm07BoSglRgUxZClCLuNBKfnM2Tga8un2amK2tA20HrUklx6Iq:h8jojSBXqRg4ZC49gaO
Threatray 19'336 similar samples on MalwareBazaar
TLSH T10E25B49D765071DECC57C572DEA82C64EA607CBA530B820FA02731A9DA3D59FCF144B2
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon c41b039b83830383 (7 x AgentTesla, 1 x SnakeKeylogger)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
11
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
URGENT REQUEST.exe
Verdict:
Malicious activity
Analysis date:
2022-08-17 10:04:03 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/b44d0f27-bead-42d9-9ea6-0085cc98ba94

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/299240/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.13474.26219.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62fcbce18adad7d7739a7ab0/reports/40dcf8e4-ff6d-45a5-a523-d81163a4567d/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8c82b078-6cd3-444d-8d59-2914addef948
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1052892
Signature
.NET source code contains very large array initializations
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 685409 Sample: URGENT REQUEST.exe Startdate: 17/08/2022 Architecture: WINDOWS Score: 100 62 Snort IDS alert for network traffic 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 13 other signatures 2->68 7 yqWDN.exe 4 2->7         started        10 URGENT REQUEST.exe 6 2->10         started        13 yqWDN.exe 3 2->13         started        process3 file4 70 Multi AV Scanner detection for dropped file 7->70 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->72 74 Machine Learning detection for dropped file 7->74 76 2 other signatures 7->76 15 yqWDN.exe 2 7->15         started        19 schtasks.exe 1 7->19         started        40 C:\Users\user\AppData\...\IZFQEjUzhmwVKc.exe, PE32 10->40 dropped 42 C:\Users\user\AppData\Local\...\tmp1B5B.tmp, XML 10->42 dropped 44 C:\Users\user\...\URGENT REQUEST.exe.log, ASCII 10->44 dropped 21 URGENT REQUEST.exe 17 5 10->21         started        24 schtasks.exe 1 10->24         started        26 URGENT REQUEST.exe 10->26         started        28 URGENT REQUEST.exe 10->28         started        signatures5 process6 dnsIp7 50 Tries to harvest and steal ftp login credentials 15->50 52 Tries to harvest and steal browser information (history, passwords, etc) 15->52 30 conhost.exe 19->30         started        46 api.telegram.org 149.154.167.220, 443, 49723, 49726 TELEGRAMRU United Kingdom 21->46 48 192.168.2.1 unknown unknown 21->48 34 C:\Users\user\AppData\Roaming\...\yqWDN.exe, PE32 21->34 dropped 36 C:\Windows\System32\drivers\etc\hosts, ASCII 21->36 dropped 38 C:\Users\user\...\yqWDN.exe:Zone.Identifier, ASCII 21->38 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->54 56 Tries to steal Mail credentials (via file / registry access) 21->56 58 Modifies the hosts file 21->58 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->60 32 conhost.exe 24->32         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cdb83c1ac7057ef8cc61946d1cb4161d53339bdf21d14534bcfbcf8f846d326f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-17 09:44:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
41
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zw4dygwhav7prtdbsrwrznawdvjthg67ehiuknf47phy7bdngjxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
3464eaf563548946c8368c46ec157de1cb0427ef1a5d779edf34ca450dd3c80c
AgentTesla
44ac93233199a7bc7e6f17be959844e6448f4e612f7f71909f2dfd41c3b388a7
AgentTesla
7ef3e3ed9bfe4215f024dcbb80e571f1bd3c99049bda18f711dcf84e05c31543
AgentTesla
ff1df80e4739ce6633a86080b629cec6d9970799ad95b0c102e09fde80746571
AgentTesla
+ 19'326 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220817-l17t1seabl/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5357159221:AAEuOoQ0pUc4ccIZou0EJ5Zin0mMneE2jYg/sendDocument
Unpacked files
SH256 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
Link:
https://www.unpac.me/results/85d3f1a9-80ea-4eff-904e-898efd098b88/
SH256 hash:
737b9aa9045e2e7607e6693c4166683749a74b2b3a334752ea1f0a8cb82f1250
MD5 hash:
2b13b26f6a3c1180bf959b4aa8310c49
SHA1 hash:
725d2647008c96766169e34c538cc398246d4365
Link:
https://www.unpac.me/results/85d3f1a9-80ea-4eff-904e-898efd098b88/
SH256 hash:
0acf819c53f53f9239029f82b8a9ab6052b4b809ab08a17f71acce9303fa459d
MD5 hash:
8c8ea7db6dec7b3411440e30721d828c
SHA1 hash:
1e96ba92323d1e4f4a6ea40dae93be904f45448c
Link:
https://www.unpac.me/results/85d3f1a9-80ea-4eff-904e-898efd098b88/
SH256 hash:
cdb83c1ac7057ef8cc61946d1cb4161d53339bdf21d14534bcfbcf8f846d326f
MD5 hash:
0dc5f946f5368e3bc1ef371b63470102
SHA1 hash:
7e2cf326a3ff422065e849dce02227c45d034a1f
Link:
https://www.unpac.me/results/85d3f1a9-80ea-4eff-904e-898efd098b88/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cdb83c1ac705/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/cdb83c1ac7057ef8cc61946d1cb4161d53339bdf21d14534bcfbcf8f846d326f

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: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

zip bc62307bc62ae636007fdbcf51bf06bda3ea5c74611094de003a6528b6c09c1f

AgentTesla

Executable exe cdb83c1ac7057ef8cc61946d1cb4161d53339bdf21d14534bcfbcf8f846d326f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/299240/
  
Dropped by
SHA256 bc62307bc62ae636007fdbcf51bf06bda3ea5c74611094de003a6528b6c09c1f
  
Dropped by
MD5 ab13cc6f2aee6992b1f35e54153f217b
  
Dropped by
SHA256 6f1f4fef1a914690844fd9d1d2c484534a6ebdc2201b82ba0f1484de2cec729a
  
Dropped by
MD5 8630f10c086b74cb82f5c51c992277f4
  
Dropped by
SHA256 809d387aa67cb5d9a6c97c596f01a599b57960584008365fdd80a900e39d612d
  
Dropped by
MD5 3a6e94f71a74c260c0898a0fbe427b4b

Comments