MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 feb91cde2c89cdf45cd078485f4f98683c11ec7d5a044a73968d31c2dcaa7e81. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: feb91cde2c89cdf45cd078485f4f98683c11ec7d5a044a73968d31c2dcaa7e81
SHA3-384 hash: bc6aece94ddacd22874a5042e8b756ef13b6998673801f89523052583f35f749243cb5139aaea4b7ba96aa92d0d2b3bd
SHA1 hash: e1dcab797de118082168f787835e67324cca9b7a
MD5 hash: c0059f77c623451c9b85287c735df32f
humanhash: bluebird-helium-tennessee-idaho
File name:UPDATED DN.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:950'272 bytes
First seen:2021-10-21 20:17:00 UTC
Last seen:2021-10-21 21:11:40 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 24576:zTdbw8eGBh3/kR/quqh6/6VSmqiT6Uqmz7H:zD3CRSuqh6//mXT6Uj7H
Threatray 12'196 similar samples on MalwareBazaar
TLSH T10F15E036104A9E86D7396FF8405232611FFCBC63FF9AD1A9AD49709E54FA92CCE30950
File icon (PE):PE icon
dhash icon e2f8f4eccc209098 (6 x AgentTesla)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
email.eml
Verdict:
Malicious activity
Analysis date:
2021-10-21 07:55:09 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d5b3ea75-fd09-47a9-b777-47fac0e2d90f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/199193/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader43.48504.425.15113.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6171cabfdb358dd15ecfd85c/reports/37dad3a3-fc44-4d76-80be-1b354dc52ed3/overview
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/79769c83-565c-456b-b82a-a7bab35cee0d
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/874853
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 507281 Sample: UPDATED DN.exe Startdate: 21/10/2021 Architecture: WINDOWS Score: 100 23 Found malware configuration 2->23 25 Multi AV Scanner detection for dropped file 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 9 other signatures 2->29 7 UPDATED DN.exe 8 2->7         started        process3 file4 19 C:\Users\user\AppData\...\xwUnvexrqIZOUN.exe, PE32 7->19 dropped 21 C:\Users\user\AppData\...\UPDATED DN.exe.log, ASCII 7->21 dropped 31 Writes to foreign memory regions 7->31 33 Allocates memory in foreign processes 7->33 35 Injects a PE file into a foreign processes 7->35 11 RegSvcs.exe 2 7->11         started        13 schtasks.exe 1 7->13         started        signatures5 process6 process7 15 dw20.exe 22 6 11->15         started        17 conhost.exe 13->17         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/feb91cde2c89cdf45cd078485f4f98683c11ec7d5a044a73968d31c2dcaa7e81/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-21 05:47:12 UTC
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=724rzxrmrhg7ixgqpbef6t4yna6bd3d5liceu44wruy4fxfkp2aq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1bb37c4a8ca150af99b3fe174a280a662ffd923fa6e9a96c62289ebdcf6617b4
AgentTesla
24e27b79291475c64e5f2a71833ac988a888e66c86d32ad5d5b20be3b7717604
AgentTesla
39c8ced861d19fcec3f225ee40ec565dcfa5d3f8db8651fc6c0a8db7dbd414c8
AgentTesla
5e02cafcb735f048e38347099086988b2ee9d5c09956f95257602d3a45fd6716
AgentTesla
9bca070ab37ea78134d5e9a5203521570bddd110e8ea8a620b702c71ecd89d54
AgentTesla
a6229790b0a76fded9219434078e2ba9349cd636ee4fa6c633d0779a464c07f7
AgentTesla
b1fe3e4522b701047d35e034db5ed2e9b8b10619b15f3d1a0b44b8da1a499352
AgentTesla
d70ef7100ac3b81d499e79035dd0b44c42ace5ae7b2b8a37a7d1eff742a27d9e
AgentTesla
f8998c25565dd6aca2fa3cb8d2ffbb3253ed22de1b230b07bf2df48a286d8ec3
AgentTesla
+ 12'186 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/211021-y2pfaabfcj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
c665523ed2efbaf724db3a48d4cb62d999cf65660d0d3bd5a0a909be7bf0a951
MD5 hash:
d681aeeb18a5786d829f361e12c77950
SHA1 hash:
7cc142219c827d1dbe0016db7ef3d1e40182d981
Link:
https://www.unpac.me/results/71422e41-fc04-4edd-b079-919faeee5e91/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/71422e41-fc04-4edd-b079-919faeee5e91/
SH256 hash:
400728e0f69c39fdfa0a6818cc93aa5af12a34646a8103dd79db52fe16f5cec4
MD5 hash:
8b844559cb0705eb94b7a904d14c9907
SHA1 hash:
12df5358d34af0976d8f75b8aaec730fa859879a
Link:
https://www.unpac.me/results/71422e41-fc04-4edd-b079-919faeee5e91/
SH256 hash:
feb91cde2c89cdf45cd078485f4f98683c11ec7d5a044a73968d31c2dcaa7e81
MD5 hash:
c0059f77c623451c9b85287c735df32f
SHA1 hash:
e1dcab797de118082168f787835e67324cca9b7a
Link:
https://www.unpac.me/results/71422e41-fc04-4edd-b079-919faeee5e91/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/feb91cde2c89/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/feb91cde2c89cdf45cd078485f4f98683c11ec7d5a044a73968d31c2dcaa7e81

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.

Malspam

AgentTesla

Executable exe feb91cde2c89cdf45cd078485f4f98683c11ec7d5a044a73968d31c2dcaa7e81

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/199193/

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