MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91c190f0d3c633e5cf959e992ddca4509b022aea53772030e510dfea69a7342b. 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


Formbook


Vendor detections: 20


Intelligence 20 IOCs YARA 5 File information Comments
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SHA256 hash: 91c190f0d3c633e5cf959e992ddca4509b022aea53772030e510dfea69a7342b
SHA3-384 hash: 96483a29380134e5e616bced420cd9c6f023fd3d9c972f63d2ae19b1e022ab9950b68244c54bdae5e32f37ec8580c785
SHA1 hash: 15cc04b578adf64f349e3b3feedc260a68da2b12
MD5 hash: a724e44288952fb56c7810b2b242bb56
humanhash: whiskey-hamper-july-bakerloo
File name:hesaphareketi_25_03_2025_20kkb pdf________________________________________________________________________pdf__.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:732'160 bytes
First seen:2025-03-25 16:43:09 UTC
Last seen:2025-04-08 08:15:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:tde2YyOn6nzxJmIXZV4D/YEwcOB87RbuOmAjbycC2nNHQv9HVKTLjq:fY9n6nfppV4Wcy87V7mmhxwvC/
Threatray 3'609 similar samples on MalwareBazaar
TLSH T14AF401886608E607CA955BB559B1F27013BD1EDEF402D3868FEDBDEB7A32F101C45292
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
442
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
d5f6729f-504d-4a2c-b3d1-0ebb8cf6275a
Verdict:
Malicious activity
Analysis date:
2025-03-25 16:49:48 UTC
Tags:
evasion stealer agenttesla exfiltration ftp
Link:
https://app.any.run/tasks/d5f6729f-504d-4a2c-b3d1-0ebb8cf6275a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3285.28402.18388.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e2dd3312b5dc44da3e0881
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67e2dd2d6a150b67eec64258/reports/daf8c5b2-6211-45d7-8c9f-e6c822bdef71/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/91c190f0d3c633e5cf959e992ddca4509b022aea53772030e510dfea69a7342b
Result
Verdict:
MALICIOUS
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/31d0a2b8-7288-4a57-80ae-e9da05a6270a
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1648276
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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 Base64 Encoded MpPreference Cmdlet
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 steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1648276 Sample: ___pdf__.exe Startdate: 25/03/2025 Architecture: WINDOWS Score: 100 28 ip-api.com 2->28 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 8 other signatures 2->38 8 ___pdf__.exe 4 2->8         started        signatures3 process4 file5 26 C:\Users\user\AppData\...\___pdf__.exe.log, ASCII 8->26 dropped 40 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->42 44 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->44 46 3 other signatures 8->46 12 ___pdf__.exe 15 2 8->12         started        16 powershell.exe 23 8->16         started        18 ___pdf__.exe 8->18         started        20 2 other processes 8->20 signatures6 process7 dnsIp8 30 ip-api.com 208.95.112.1, 49716, 80 TUT-ASUS United States 12->30 48 Tries to steal Mail credentials (via file / registry access) 12->48 50 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 12->50 52 Tries to harvest and steal browser information (history, passwords, etc) 12->52 54 Loading BitLocker PowerShell Module 16->54 22 conhost.exe 16->22         started        24 WmiPrvSE.exe 16->24         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/91c190f0d3c633e5cf959e992ddca4509b022aea53772030e510dfea69a7342b
Detection:
agenttesla
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Link:
https://mwdb.cert.pl/sample/91c190f0d3c633e5cf959e992ddca4509b022aea53772030e510dfea69a7342b/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-03-25 12:59:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=shazb4gtyyz6lt4vt2ms3xfekcnqekxkkn3samhfcdp6u2nhgqvq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
39711f9ed69e976f7d9ef46eb054961108e4bf50cb0d325224cf49cad65c0844
Formbook
4134e809b4215bcc9028ec5a5c7bf398a6c03ac5188c53481ac44deadd8c2af5
Formbook
9a2ebcdc6008be237ef88cb4042305090c4c4e9202a6805d76f9aaaa6a84def9
Formbook
b19eb31edea25385e18376946f4a39e4b51a1eedc0b6cbf8c1bd90dacdbbe2c9
Formbook
c177812f5ee5c7643659dba85dcdb7d86134d2a437a8c7934c9b63eb3a5b4530
Formbook
fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
Formbook
+ 3'599 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/250325-t8e3zaspx6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
AgentTesla
Agenttesla family
Verdict:
Malicious
Tags:
external_ip_lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/51035508-b213-4bdc-b635-0eb927e0da59
Unpacked files
SH256 hash:
bbac028c0470bfe98177dde3bbd82b48a316a992fb51797a79e1aca9064bfb9f
MD5 hash:
2e794cc77833e2e5f4a8514a9014e5e8
SHA1 hash:
288d60c2f36ce703122034fec75f56096595a629
Link:
https://www.unpac.me/results/7917630d-5f82-4375-a178-3424339181ec/
SH256 hash:
d0bf05c40f6cca186c6bbb694004eada98f67485d6fc5bddd84afa2e9740ae21
MD5 hash:
dfcec857e077b3075c5fe093252ac434
SHA1 hash:
d23355b71178d79cb56892bdbc619f5dbfeecc8d
Detections:
win_agent_tesla_g2
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
MALWARE_Win_AgentTeslaV2
Create hunting rule
Link:
https://www.unpac.me/results/7917630d-5f82-4375-a178-3424339181ec/
Parent samples :
4aa20addbb057c7444978c737438b5fbc743759d3e2e9f1de1a22dee3dc53399
91c190f0d3c633e5cf959e992ddca4509b022aea53772030e510dfea69a7342b
d629fdb77e1605a25ebdd7fd024417cfc8b11c66d54b865a34bccedfa62fc61b
9dd4728855aa9fb7d5294a2e71310a37b65045e2c9f2d20417fbc18809b2bdc4
34499b46ee764909327d18d303409d19ebde168f04abbe82d2ace630bf445517
8ee7c43df8788680a27f8ecbffe12a28b62b0bae14adf1ba00b1c915f0d82455
da00184567031f30767dae698ef809f2faa6ce271b03a4e03695f0b236e68d1d
SH256 hash:
f4e989f327fb59a4e76b4dfb7afe98c2ed2753a675a8a951787cd4df96a311fe
MD5 hash:
913e6fa761185f5fa13a6bda3dcd39c6
SHA1 hash:
e334f01655da6324d34fc9093dd468dde98feca1
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/7917630d-5f82-4375-a178-3424339181ec/
SH256 hash:
91c190f0d3c633e5cf959e992ddca4509b022aea53772030e510dfea69a7342b
MD5 hash:
a724e44288952fb56c7810b2b242bb56
SHA1 hash:
15cc04b578adf64f349e3b3feedc260a68da2b12
Link:
https://www.unpac.me/results/7917630d-5f82-4375-a178-3424339181ec/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91c190f0d3c6/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/91c190f0d3c633e5cf959e992ddca4509b022aea53772030e510dfea69a7342b

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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