MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 411866fa8b5f27b7254d3bdc1b152c33e8a6420ae444f5242023df50f06b2c21. 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: 18


Intelligence 18 IOCs YARA 1 File information Comments
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SHA256 hash: 411866fa8b5f27b7254d3bdc1b152c33e8a6420ae444f5242023df50f06b2c21
SHA3-384 hash: 6e93d6a629efacabbc436cbd7d6e7e83a24eea3def119507991fc0b0fd5a1945d22921c3019e173d3955aec4be95726a
SHA1 hash: 47d44970393519e8189fe83793fa5e33cccd7a02
MD5 hash: 668a1c6359bb1b9d1d53df667ef82544
humanhash: maine-north-lemon-bravo
File name:Agrubu 06092023.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:478'297 bytes
First seen:2023-06-09 13:06:46 UTC
Last seen:2023-06-09 13:57:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 6144:OYa6PiwSbngMs02WzVXMTeGerAeaHYV8pSec4uoVfh:OYcwqgKrRXRGq5ol/lh
Threatray 2'652 similar samples on MalwareBazaar
TLSH T187A48C27A5DCEAC7C4AC48796D29F32E7116AC2584318C12BD8AF94DC4F175265F3A3C
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f2ceaeaeb2968eaa (68 x RedLineStealer, 21 x AgentTesla, 18 x AveMariaRAT)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
307
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Agrubu 06092023.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-06-09 13:08:12 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/7f5f53bf-60df-41ab-9086-eeae2648ea48

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/397398/
Detection(s):
Sanesecurity.Rogue.0hr.20230609-0434.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/90138/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/648323f760dff9842c54f537/reports/b1e27068-5df1-4732-ae3f-32427ec9b783/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/411866fa8b5f27b7254d3bdc1b152c33e8a6420ae444f5242023df50f06b2c21
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:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5f8f475f-3f31-416f-99cc-c31a69cce22b
Result
Threat name:
FormBook, NSISDropper
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1251946
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 884966 Sample: Agrubu_06092023.pdf.exe Startdate: 09/06/2023 Architecture: WINDOWS Score: 100 31 www.tristone13th.shop 2->31 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 9 other signatures 2->45 11 Agrubu_06092023.pdf.exe 19 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\intnu.dll, PE32 11->29 dropped 55 Detected unpacking (changes PE section rights) 11->55 57 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 11->57 59 Maps a DLL or memory area into another process 11->59 61 Tries to detect virtualization through RDTSC time measurements 11->61 15 Agrubu_06092023.pdf.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 2 1 15->18 injected process9 dnsIp10 33 tbn.fydns2023.com 139.99.8.190, 49709, 80 OVHFR Canada 18->33 35 www.bandulakeerthisinghe.com 188.114.96.7, 49710, 80 CLOUDFLARENETUS European Union 18->35 37 4 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/411866fa8b5f27b7254d3bdc1b152c33e8a6420ae444f5242023df50f06b2c21/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2023-06-09 04:18:25 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iemgn6ull4t3ojknhpobwfjmgpukmqqk4rcpkjbaeppvb4dlfqqq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2cb0d3b3c2a398a778d18b089cf68d8f7fd91808da695bee0f0fb556354efe09
Formbook
520332210fa79a3628b8a514f18ba872117489cb013809161629d1443d8ae800
Formbook
7a4cbe6918c174321d777bd64c6cd6d8c6a3ba69c07a43ca357a691f0ef6a480
Formbook
8510156c681956fa592f4e2f346a7cd02ce7a00a31264dc2106e6e0b5a4b267b
Formbook
9c1292869bf34d5077f8f2bffd19ff671a0dcd996734c3d8af1e484cac42d80d
Formbook
afbccae6537d0602edbc99ef03ec8b89ec23df241079f949c0b8a0aa6f9aa8f0
Formbook
f7bb2d35300a95c164089832c13410023d2293390130109ae3693fd0d05a3df8
Formbook
fdf0c7d08d92b27b19cd74779d71066a5605f3389421a4b9f3e50276ed7223ea
Formbook
+ 2'642 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sn84 rat spyware stealer trojan
Link:
https://tria.ge/reports/230609-qcmw6acb65/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
3c796981049a83fd8a8d998e591e1e73e4a0a10b99fafdd14002d6ecb767eece
MD5 hash:
064ab98428636140cb906e526d04ea63
SHA1 hash:
ab40875f1772499d0727cdb969a44e0a916d1b41
Link:
https://www.unpac.me/results/5191f5aa-8cf0-47ba-9d5e-44dcd46d49f4/
SH256 hash:
411866fa8b5f27b7254d3bdc1b152c33e8a6420ae444f5242023df50f06b2c21
MD5 hash:
668a1c6359bb1b9d1d53df667ef82544
SHA1 hash:
47d44970393519e8189fe83793fa5e33cccd7a02
Link:
https://www.unpac.me/results/5191f5aa-8cf0-47ba-9d5e-44dcd46d49f4/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/411866fa8b5f/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/411866fa8b5f27b7254d3bdc1b152c33e8a6420ae444f5242023df50f06b2c21

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/397398/

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