MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2fe04b23ff87693a170fbe1c4375595699582113c89d2b38809d5ce0703345b. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2fe04b23ff87693a170fbe1c4375595699582113c89d2b38809d5ce0703345b
SHA3-384 hash: 28988a34751588d1cf892c4c576cfba39e3f9c845d96c5fb39e618dabfb9151fd73ce2dee1a3c312b47b38264de3f2b8
SHA1 hash: ef3bb2d056279f8f2f053dc9cf7958dcb1dbd341
MD5 hash: c0d722db7a9fc04dc2d34926092acbb2
humanhash: six-wisconsin-robin-washington
File name:PO_DEA83657-ARF-508334.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'085'952 bytes
First seen:2021-07-16 10:37:15 UTC
Last seen:2021-07-16 11:40:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:/0G93gh1f1LZYgnxQEzhH4ycTJGF0McCkR0hpkuZ3Vsq3B5Srm:/B2hJ1y8/91cT4BSakuBvB54
Threatray 7'190 similar samples on MalwareBazaar
TLSH T1EF3501267790AB8FC72E4CB6D2424800A3E1D6773647F7C26CE360DD248D69A97512FE
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
121
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO_DEA83657-ARF-508334.exe
Verdict:
Malicious activity
Analysis date:
2021-07-16 10:39:13 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8db9c538-3798-4515-9017-addd168aaf77

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/172171/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.931.4321.24381.UNOFFICIAL
Create hunting rule

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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3b8a6a69-21c6-4690-9ac5-32fbe976ac65
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/817409
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Defender Exclusion
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 449820 Sample: PO_DEA83657-ARF-508334.exe Startdate: 16/07/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Multi AV Scanner detection for dropped file 2->40 42 8 other signatures 2->42 7 PO_DEA83657-ARF-508334.exe 7 2->7         started        process3 file4 28 C:\Users\user\AppData\...\QIGBECQSCihfj.exe, PE32 7->28 dropped 30 C:\...\QIGBECQSCihfj.exe:Zone.Identifier, ASCII 7->30 dropped 32 C:\Users\user\AppData\Local\...\tmp9AB3.tmp, XML 7->32 dropped 34 C:\Users\...\PO_DEA83657-ARF-508334.exe.log, ASCII 7->34 dropped 44 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->46 48 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->48 50 2 other signatures 7->50 11 PO_DEA83657-ARF-508334.exe 7->11         started        14 powershell.exe 24 7->14         started        16 powershell.exe 25 7->16         started        18 2 other processes 7->18 signatures5 process6 signatures7 52 Moves itself to temp directory 11->52 54 Tries to steal Mail credentials (via file access) 11->54 56 Tries to harvest and steal ftp login credentials 11->56 58 Tries to harvest and steal browser information (history, passwords, etc) 11->58 20 conhost.exe 14->20         started        22 conhost.exe 16->22         started        24 conhost.exe 18->24         started        26 conhost.exe 18->26         started        process8
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a2fe04b23ff87693a170fbe1c4375595699582113c89d2b38809d5ce0703345b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-07-15 12:55:39 UTC
AV detection:
22 of 27 (81.48%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ul7ajmr77b3jhilq7pq4in2vsvuzlaqrhse5fm4ibhk44bydgrnq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
4585e13fe4d4307e82e693c3063bf53ea84591b843c0ae59fefc0f4086ec86db
AgentTesla
57b2a44351febaa40160b21423b5f084f15802290e82910cd3d94331eb3e3791
AgentTesla
61d4dd89bcb94b321942a0ebc30ad2319411eff15bc24ab4769fd00a20a92188
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88d6342ccae8c8af4195bcb8c8d41230821ff2d1d5d559e074e240d903af840d
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dc3c0dc5884f2252d2632da5c719e49080197ae9e06dd7438a31c65b800d3f84
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e7d489df6c41d065986388f6673e9b179acf89d87acf58ca8a015d778a6c8dff
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ebdb5f9167c925da14a5783a022be63ac4daeeb7515692c7cd50c37a7851e7e4
AgentTesla
ebf2bf210764dcaf2ee0019cca80cc1c0f147671635bae9371c421d170794c29
AgentTesla
f349ed3a3e5bab8bc5694ba8885e6717c049064394682b240afe62ede7f67a9e
AgentTesla
feb639dabb33ddc8d08dc3065a7a869225419d52be2aa0ec247377607a426ef3
AgentTesla
+ 7'180 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210716-d7dky9ksds/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Unpacked files
SH256 hash:
ad1e7e7e2fc55b6ca20c48974c748240adab72c61b19cb2178c37f710bea112d
MD5 hash:
452a58442150327388862f995ecee706
SHA1 hash:
8a03a2d68b136399e19bb7147b5e14e1551fdab1
Link:
https://www.unpac.me/results/616d5c22-b3ba-4aff-9910-0caeb6deff5b/
SH256 hash:
e68de707f49379e863d4bd59455bca55535f56723227a1e3df9f27c5c670046b
MD5 hash:
bfe817b69b640f9aaac76fc93e2f7cc0
SHA1 hash:
5f39324f160c18f8ea351af370470178c90e0a7a
Link:
https://www.unpac.me/results/616d5c22-b3ba-4aff-9910-0caeb6deff5b/
SH256 hash:
82a4065578bf324c5a382d4e43510bfe37dc2d4accaa25792aecea77c7387714
MD5 hash:
ecff0ff8f308ad9a7ab4e8d8c6632f1f
SHA1 hash:
b2149cd8ad0767e9ee467d85f7f5d97494ecb07a
Link:
https://www.unpac.me/results/616d5c22-b3ba-4aff-9910-0caeb6deff5b/
SH256 hash:
5a9c12c014b0b4bee980dba7739d3334ca98556f45f09f8f91fcb7b625dd2941
MD5 hash:
06908b8351b7667bf7b84ca3d5c676ce
SHA1 hash:
9c890c7c47e3e6cb7e7f4c144406aad3691e8c09
Link:
https://www.unpac.me/results/616d5c22-b3ba-4aff-9910-0caeb6deff5b/
SH256 hash:
a2fe04b23ff87693a170fbe1c4375595699582113c89d2b38809d5ce0703345b
MD5 hash:
c0d722db7a9fc04dc2d34926092acbb2
SHA1 hash:
ef3bb2d056279f8f2f053dc9cf7958dcb1dbd341
Link:
https://www.unpac.me/results/616d5c22-b3ba-4aff-9910-0caeb6deff5b/
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/a2fe04b23ff87693a170fbe1c4375595699582113c89d2b38809d5ce0703345b

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

Executable exe a2fe04b23ff87693a170fbe1c4375595699582113c89d2b38809d5ce0703345b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/172171/

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