MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4c4fb8bc4629153ed1768ebc1255538df38a066522d48e101c8c97242359bbc. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4c4fb8bc4629153ed1768ebc1255538df38a066522d48e101c8c97242359bbc
SHA3-384 hash: e259565e259e54c869775efbc9dc1838d85176f8f9c5591602f4701614923736edecb6a964fa0fb9926882f503b71a7f
SHA1 hash: e35f4afaec5fe2719bd28de93ec857aa28b6ea09
MD5 hash: 9d6a93e8a50a71f8d9988b9011b2e0f7
humanhash: lactose-virginia-winter-carpet
File name:iftbel-list of items1pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:653'824 bytes
First seen:2023-05-23 14:39:05 UTC
Last seen:2023-05-23 15:51:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:G2iN/ZBHjNnPGO6Qw+22nxe9OWzrf/KlRxgyG5:G1hZBDNnYCxe99rfmxc5
Threatray 1'691 similar samples on MalwareBazaar
TLSH T143D4DF972A2B4F36D57543FA4621E1B8A3762FA86177D3269CE7BCE3F0367824801453
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
293
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
iftbel-list of items1pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-05-23 14:40:47 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/504323f8-f1b1-43fa-9aa7-5bcb04c6af9a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/646cd0435c09d16f6a327e52/reports/e6c539f7-bcaa-4e61-af12-bbc29fbc7045/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/a4c4fb8bc4629153ed1768ebc1255538df38a066522d48e101c8c97242359bbc
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b2852b8d-26ba-4e74-a88b-a3e546f44e47
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1240935
Signature
Adds a directory exclusion to Windows Defender
Drops PE files with benign system names
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 873944 Sample: iftbel-list_of_items1pdf.exe Startdate: 23/05/2023 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic 2->48 50 Found malware configuration 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 5 other signatures 2->54 7 iftbel-list_of_items1pdf.exe 4 2->7         started        11 svchost.exe 2 2->11         started        13 svchost.exe 1 2->13         started        process3 file4 32 C:\Users\...\iftbel-list_of_items1pdf.exe.log, ASCII 7->32 dropped 56 Adds a directory exclusion to Windows Defender 7->56 15 RegSvcs.exe 17 4 7->15         started        20 RegSvcs.exe 7->20         started        22 powershell.exe 21 7->22         started        24 conhost.exe 11->24         started        26 conhost.exe 13->26         started        signatures5 process6 dnsIp7 34 api.telegram.org 149.154.167.220, 443, 49699 TELEGRAMRU United Kingdom 15->34 30 C:\Users\user\AppData\Roaming\...\svchost.exe, PE32 15->30 dropped 36 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->36 38 Tries to steal Mail credentials (via file / registry access) 15->38 40 Tries to harvest and steal browser information (history, passwords, etc) 15->40 46 2 other signatures 15->46 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->42 44 Drops PE files with benign system names 20->44 28 conhost.exe 22->28         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4c4fb8bc4629153ed1768ebc1255538df38a066522d48e101c8c97242359bbc/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-05-23 13:14:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=utcpxc6emkivh3ixndv4cjkvhdptridgkiwuryibzdexeqrvto6a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
061f8abfc0e824b3fb3c45acdf6e050f942db15c8900b8a9f58c12286e68fe47
AgentTesla
09d70a9a22f7bf12c1a6354b1d90d426e1223576d27ba855f6f48d78bf508833
AgentTesla
2e122653f2f213fea66143fd3a80af76a38bda77fe06b9450d4ba795d98704d5
AgentTesla
3c2846461941ebb9805092c18d217a5e78b74619e82f9bb21b2c11d59974cf03
AgentTesla
85574a66e3fbb37b82be9171860a77e52033ca6d877f5eb46011ef5d470cbe93
AgentTesla
b58289009391f4997135e60b89655880cc54e3e7ebc90e6056401be2b798a3ee
AgentTesla
c9a2e27125a45f8b667438d540f0a02e811331e008c9a3c145c36804f98144f7
AgentTesla
e5134d502b62ac76c8ba7c2bb7e729b348e6573d0829ce22777874d30cfc9fb6
AgentTesla
e78333be3402a8425c18a63f6938fa2f861c877e362d6c679079c17d6ee18dd2
AgentTesla
+ 1'681 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/230523-r1vscaff78/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5932003035:AAGiWu3EDh9FYzqRKIySebzjjQ5uW0afS3o/
Unpacked files
SH256 hash:
ebb82a3551b324023bcd1d15c272a4eb471501e248cc51de0e02c04c93a22521
MD5 hash:
0cb11f43e26fc762001f664723014482
SHA1 hash:
df2cb9e8eb36a4de0c0b5f06b61540ecf2e94f04
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/2a07ef78-b827-4c01-8c59-e305ba9b994d/
SH256 hash:
cb5ee4cfd7179a57298c02ce4ccc9c2ca6b0b310758a7320340cf0a40ab62f88
MD5 hash:
0dd66dbaf510e93ec00b9eadf5ec34b6
SHA1 hash:
b7e1b7bbf2d58cc03beeb7095ae98e03426f39a7
Link:
https://www.unpac.me/results/2a07ef78-b827-4c01-8c59-e305ba9b994d/
SH256 hash:
721a27df49d9614c002742e9a4f807a2c6048b4c65056d796d1d08fa0d16f490
MD5 hash:
f2fbae476cb8b719b5306ede653e31e1
SHA1 hash:
b3b76b8f9745736d80d844995de34c184258acfa
Link:
https://www.unpac.me/results/2a07ef78-b827-4c01-8c59-e305ba9b994d/
SH256 hash:
16c255190eaaf1b60ec7d07abcac5f614ea197cee2416ca9d01bb563c526c87d
MD5 hash:
fb4ed205b442f470bbf10913128efdcb
SHA1 hash:
9a0a4c5ae429769e3253a9a3daefa24270b87a5b
Link:
https://www.unpac.me/results/2a07ef78-b827-4c01-8c59-e305ba9b994d/
Parent samples :
ee57b6fa1e5a3c5ef776b79f32820327bcb3fe1974eeddf65c0eb56131193397
de8c7c543f438af1e7e78096f6873268e9b1a12745edf9c88db07e136163399e
SH256 hash:
1141e4949fa7808f855bff4036d3061961870fb3a5da8daa996c6b899e50b4be
MD5 hash:
b48bc0173fa3188443f98fd262d85029
SHA1 hash:
8734570c8a65c4dc68eb29e40de38f6608b41b36
Link:
https://www.unpac.me/results/2a07ef78-b827-4c01-8c59-e305ba9b994d/
SH256 hash:
a4c4fb8bc4629153ed1768ebc1255538df38a066522d48e101c8c97242359bbc
MD5 hash:
9d6a93e8a50a71f8d9988b9011b2e0f7
SHA1 hash:
e35f4afaec5fe2719bd28de93ec857aa28b6ea09
Link:
https://www.unpac.me/results/2a07ef78-b827-4c01-8c59-e305ba9b994d/
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/a4c4fb8bc4629153ed1768ebc1255538df38a066522d48e101c8c97242359bbc

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:MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
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 a4c4fb8bc4629153ed1768ebc1255538df38a066522d48e101c8c97242359bbc

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments