MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91915a12e602254583676a35b861ac18bff0f5b52a9c447dd6c3a72ec4becc6d. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91915a12e602254583676a35b861ac18bff0f5b52a9c447dd6c3a72ec4becc6d
SHA3-384 hash: 4d47878fdcb7a9fca61a4e4060c7b4eb5ec00347e68f7caa5c5b3fa8226f0bb89ffa6b9c8ebde242c19af978a9ec4f1a
SHA1 hash: d11651bdae7a632867b2404beb2e48382adb6953
MD5 hash: 6da5d529bce004d1ec5154a202bdb072
humanhash: social-summer-magnesium-five
File name:TT Ref344200.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:736'256 bytes
First seen:2021-03-01 05:28:46 UTC
Last seen:Never
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:JDf1QxiqiD1EeuBQg+t5ORRYVm7bz0RFRv:YiqIEPult2RYVmD
Threatray 2'882 similar samples on MalwareBazaar
TLSH ADF46B3521AF244EC437BBB21BD0855FE7A23B22560BF52F548065D71E32F42DF86A26
Reporter FORMALITYDE
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TT Ref344200.exe
Verdict:
Suspicious activity
Analysis date:
2021-03-01 05:30:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/66781be8-f599-458a-bef8-9b54b7351b1e

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/120088/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.19408.21593.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
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.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/621618
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
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
Moves itself to temp directory
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)
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 359801 Sample: TT Ref344200.exe Startdate: 01/03/2021 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected AgentTesla 2->49 51 6 other signatures 2->51 6 TT Ref344200.exe 3 2->6         started        10 WcOUZ.exe 3 2->10         started        12 WcOUZ.exe 2 2->12         started        process3 file4 21 C:\Users\user\...\TT Ref344200.exe.log, ASCII 6->21 dropped 53 Injects a PE file into a foreign processes 6->53 14 TT Ref344200.exe 2 7 6->14         started        55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->55 57 Machine Learning detection for dropped file 10->57 59 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 10->59 61 Found evasive API chain (trying to detect sleep duration tampering with parallel thread) 10->61 19 WcOUZ.exe 4 10->19         started        signatures5 process6 dnsIp7 27 smtp.haohuatlre.com 14->27 29 us2.smtp.mailhostbox.com 208.91.198.143, 49728, 49729, 49730 PUBLIC-DOMAIN-REGISTRYUS United States 14->29 31 192.168.2.1 unknown unknown 14->31 23 C:\Users\user\AppData\Roaming\...\WcOUZ.exe, PE32 14->23 dropped 25 C:\Users\user\...\WcOUZ.exe:Zone.Identifier, ASCII 14->25 dropped 37 Moves itself to temp directory 14->37 39 Tries to steal Mail credentials (via file access) 14->39 41 Tries to harvest and steal ftp login credentials 14->41 43 2 other signatures 14->43 33 smtp.haohuatlre.com 19->33 35 208.91.199.223, 49756, 49760, 587 PUBLIC-DOMAIN-REGISTRYUS United States 19->35 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91915a12e602254583676a35b861ac18bff0f5b52a9c447dd6c3a72ec4becc6d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-01 04:33:08 UTC
AV detection:
3 of 48 (6.25%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sgivuexgaisula3hni23qynmdc77b5nvfkoei7owyots5rf6zrwq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0a730a1310ede38cd0698606ccbe1a8bbd46c15308a735b1fbfe984a123bbe8d
AgentTesla
1d6004838e32ca7b5763964c99d3c92fc591c7b21d0de3595a7da27794ec5ab6
AgentTesla
29890b01a73b6721cf2e80232cc366b95be2eeb81bd7beb72372cd3ae4f05293
AgentTesla
3ad6ce8aaf456bd0cfd4ea3f7be02d9d08b5e74249e1bb49be61ff58ed61f675
AgentTesla
3f643208ad4025825d073c43dc40f4453df1cae39be3cc31b647236d76657fa1
AgentTesla
4231c38aadd1c59f0270408e841f773c1e17bf1e45f02d20f440d1c82413ec5a
AgentTesla
4c482b22456df2e37106d59a8afeccdeb736ee89b13b3de6968acee2f3ce9f25
AgentTesla
7b3834838c8089d4af4508d5961ea134c7ae331dfe350381f38fb6ffda679726
AgentTesla
93bb62774d2359778e34985d5c7fc6be51f91e48706509b8698714f0b5f46a46
AgentTesla
cdcd7f4c9ccb8eeda9202454f40c32ce208c4943df9f84b56cb08ef600015e31
AgentTesla
+ 2'872 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210301-fqd9lrqjcs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
a654bc803fc16b4cced7b6781abe1153108447137bb912427ac74507d97b7d37
MD5 hash:
006cbba2c3bc7e56e02eadfc4a2ec386
SHA1 hash:
ef071140790bd774333d3dd05547e4edd582349d
Link:
https://www.unpac.me/results/046742b4-d607-4ea9-ad65-c10642646aae/
SH256 hash:
b11afe190511e66ebfc72dcdf6b0361049d9fc9be67daa0770fcaf3ea6e51e46
MD5 hash:
9cf316b57dd32601be9823c586137189
SHA1 hash:
7351b93c30f7edbeb47f8f5c719e758a5012231a
Link:
https://www.unpac.me/results/046742b4-d607-4ea9-ad65-c10642646aae/
SH256 hash:
f8b5b51efedb3e87493ac2439473564603cc3059d57956f209a7310e311a1027
MD5 hash:
d66f89bf838fb52ed59d311a99aea214
SHA1 hash:
342525c4aabbb92abf51459081d34ed0f1cdc965
Link:
https://www.unpac.me/results/046742b4-d607-4ea9-ad65-c10642646aae/
SH256 hash:
91915a12e602254583676a35b861ac18bff0f5b52a9c447dd6c3a72ec4becc6d
MD5 hash:
6da5d529bce004d1ec5154a202bdb072
SHA1 hash:
d11651bdae7a632867b2404beb2e48382adb6953
Link:
https://www.unpac.me/results/046742b4-d607-4ea9-ad65-c10642646aae/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/91915a12e602254583676a35b861ac18bff0f5b52a9c447dd6c3a72ec4becc6d

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:adonunix
Create hunting rule
Author:Tim Brown @timb_machine
Description:AD on UNIX
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe 91915a12e602254583676a35b861ac18bff0f5b52a9c447dd6c3a72ec4becc6d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/120088/

Comments