MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40. 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: 13


Intelligence 13 IOCs YARA 19 File information Comments
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SHA256 hash: e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40
SHA3-384 hash: e98251d6efed6d9ba69ca8dae3aa31c651196d034726cc6532b6349a8eb4a8e4f90b47eabc6ebe4101889ae28c80521a
SHA1 hash: 0500ce1970c2e39c303ebebc2774c15b5e3eaf7d
MD5 hash: 962235ebd4bef345f069d341e0ae305a
humanhash: friend-carbon-may-victor
File name:Dekont.pdf.exe
Download: download sample
Signature Formbook
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File size:979'968 bytes
First seen:2024-02-13 13:46:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:7yXC092Pp/tOfOkaSCc4uc6/yQzI7OIiJk4VL1rZTkZaQb2In6EW:492R/twyuc6/yNOIiii1rZC6In6
TLSH T16725C0077E2A89A2D7FA2737D5A746140760C966AAB3D70772CD22E628133FB5F50703
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
327
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/475992/
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
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Win.Trojan.EmbeddedReversedDLL-9940922-0
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Win.Trojan.Generic-10014419-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Sending a custom TCP request
Creating a window
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade net_reactor packed packed
Link:
https://www.filescan.io/uploads/65cb72e554f1a1b63b6cf982/reports/a1f39ea6-61d4-4e77-9179-44a28b246018/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ccedc79c-aff1-468b-a711-6b336fd299b8
Result
Threat name:
AgentTesla, PureLog Stealer
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1391449
Signature
.NET source code contains potential unpacker
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
Machine Learning detection for sample
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)
Sample uses string decryption to hide its real strings
Sigma detected: Suspicious Double Extension File Execution
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40/
Threat name:
Win32.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-02-13 09:14:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4og7dcw73y7hvumystnnsv44blnbrp553s2wqrvaipcm7oar5raa._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
zgrat
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Score:
  10/10
Tags:
family:agenttesla family:zgrat keylogger rat spyware stealer trojan
Link:
https://tria.ge/reports/240213-q3j8ysbd2x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
ba7de665a72b3969f05d9654582a4e80b6f0d42bbcd46083f251684d4b009a1e
MD5 hash:
67074c985c082e6e4920e6be9f1dcf46
SHA1 hash:
cbfbd34489f373bcaaab83ebfc2e949e4fb0bcf8
Link:
https://www.unpac.me/results/bf532ac2-e383-4a42-bc73-7d7ea2432e29/
SH256 hash:
bb0dd008cb087f0823ffc3677ed4cab4de4e02140d9035f6430377dc8ece6393
MD5 hash:
2067c13fdfaea453dfceee96e601be66
SHA1 hash:
75af23a941a6c024dc0385852070400eb347394a
Detections:
AgentTesla
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win_agent_tesla_g2
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/bf532ac2-e383-4a42-bc73-7d7ea2432e29/
Parent samples :
e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40
0764ec132ebf90d1c59dfe6bc19d492b1e0034f3021f466c63231be4413bc1e6
2f7ca180c50ce99d164b5601826e648f88d6db9b932b052dfea9d59a7e2b78ed
48e27e05da2697751c4de6a8d5d32f9de30c5be86fd5c2263624f6be1e25ac87
12d4a1c97873ee94b9b371666debc07aea1fd56d8afda6d023d2426bc54f6e34
f80e5f58eaad73e902c8d612e166c360a309e4093bd7fa3451df4495638a73e4
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/bf532ac2-e383-4a42-bc73-7d7ea2432e29/
SH256 hash:
f504781a02cf53d0469cc32667564804c8a44e220f9b4870fc63493cc58f6e01
MD5 hash:
6ed8681c4d7a1328eafad40dc10e86d0
SHA1 hash:
2381a3c7ab5fa3038a1e0811a7d49a766f5efe86
Link:
https://www.unpac.me/results/bf532ac2-e383-4a42-bc73-7d7ea2432e29/
SH256 hash:
e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40
MD5 hash:
962235ebd4bef345f069d341e0ae305a
SHA1 hash:
0500ce1970c2e39c303ebebc2774c15b5e3eaf7d
Detections:
Typical_Malware_String_Transforms
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Link:
https://www.unpac.me/results/bf532ac2-e383-4a42-bc73-7d7ea2432e29/
Malware family:
AgentTesla
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e38df18adfde/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40

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:AgentTeslaV3
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Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
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Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
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Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
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Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
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Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

File information

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

Malspam

Formbook

Executable exe e38df18adfde3e7ad19894dad9579c0ada18bfbddcb56846a043c4cfb811ec40

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/475992/

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