MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41618cb3eabd9750fa776f31b8117e4025fd3d03af5e30d62100d84ce8101406. 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: 11


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

SHA256 hash: 41618cb3eabd9750fa776f31b8117e4025fd3d03af5e30d62100d84ce8101406
SHA3-384 hash: dc9c20c0e2f6253dbf00179a275da277b85a426c2a0e6f909c82d9b97c5f8c25493f5db9af7b95c1127f114574c48ad5
SHA1 hash: 46497b9718efb3538c0414e4b238e6d70c0f4230
MD5 hash: 994934144a89538302535b4135d4c414
humanhash: mobile-fillet-washington-hotel
File name:E-dekont_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:342'953 bytes
First seen:2023-03-27 10:27:35 UTC
Last seen:2023-03-30 07:56:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (199 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 6144:H6+/tVa/10URQbxpXRj/7O2KSMlEAYdvrvsNkK+a7u5YX1S/eNPLbQg:Pna/mzbxpBj/7bKTEAYtrupYM8g
Threatray 1'112 similar samples on MalwareBazaar
TLSH T11B74128771D8DC97D9782731CD6F6B258EE2CC2039461A472B987E0EB633783561E3A1
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
3
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
E-dekont_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-03-27 10:34:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1a44d134-265e-44b8-b9a6-7d7ec09b9072

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/377850/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %temp% subdirectories
Creating a file
Creating a file in the %AppData% directory
Delayed reading of the file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64216fb69c109cf74b300e73/reports/f59428b7-6c13-4803-a41d-23cfd1c7b4d3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/41618cb3eabd9750fa776f31b8117e4025fd3d03af5e30d62100d84ce8101406
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/3ea28e43-3397-41b5-b84d-744bc224ef41
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1202613
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
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 Any.run
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 835517 Sample: E-dekont_pdf.exe Startdate: 27/03/2023 Architecture: WINDOWS Score: 100 34 www.www-1911.com 2->34 36 www.migswelders.com 2->36 38 19 other IPs or domains 2->38 56 Snort IDS alert for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 7 other signatures 2->62 11 E-dekont_pdf.exe 5 68 2->11         started        signatures3 process4 file5 30 C:\Users\user\...\MapiProxy_InUse.dll, PE32 11->30 dropped 32 C:\Users\user\AppData\Local\...\System.dll, PE32 11->32 dropped 70 Tries to detect Any.run 11->70 15 E-dekont_pdf.exe 6 11->15         started        signatures6 process7 dnsIp8 46 34.138.169.8, 49804, 80 ATGS-MMD-ASUS United States 15->46 48 Modifies the context of a thread in another process (thread injection) 15->48 50 Tries to detect Any.run 15->50 52 Maps a DLL or memory area into another process 15->52 54 2 other signatures 15->54 19 explorer.exe 4 1 15->19 injected signatures9 process10 dnsIp11 40 www.buylikeking.com 65.254.74.183, 49816, 80 UNIFIEDLAYER-AS-1US United States 19->40 42 migswelders.com 169.61.152.183, 49829, 80 SOFTLAYERUS United States 19->42 44 11 other IPs or domains 19->44 64 System process connects to network (likely due to code injection or exploit) 19->64 23 msdt.exe 19->23         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 23->66 68 Maps a DLL or memory area into another process 23->68 26 cmd.exe 1 23->26         started        process15 process16 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41618cb3eabd9750fa776f31b8117e4025fd3d03af5e30d62100d84ce8101406/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ifqyzm7kxwlvb6txn4y3qel6ias72pidv5pdbvrbadmez2aqcqda._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552
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62563b5858256c4048137b94b1f0f3a6abb1cef7e2f9afdf3e874d08ac3ab708
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628aa31e938f6407d365b1c833953f4d5b696c08c55b2b9905e2ab6dd724039b
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856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf
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8c5606a7010f8a4d5701c1b99fd91af0d1b59bf9bbedb345ba09b449a70fc29f
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8dbb132dccc8fb8a83062fec3840b1556a75862c07d22a0740ca095698ed0f6d
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f6530f654262274b3f1debb0bc6b3de7686fd551224a03a3d0814b45c7e431ea
Formbook
fc3d76ed49eec628b68edd00a4eddc93a027091aad8fc59991c26b039a81e531
Formbook
+ 1'102 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:be83 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/230327-mhpq6ada25/
Behaviour
Enumerates system info in registry
Gathers network information
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
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Checks QEMU agent file
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
febff17dd30d2d19de5bc0b8578182d70b6f900c449fa027df5026407de992a5
MD5 hash:
443e5400173cf71621dfdd63a56dfa4b
SHA1 hash:
79738cbbf2c1a5df58be03a65ad07fb0afe0bc59
Link:
https://www.unpac.me/results/b95545db-fd7e-4f49-bea7-ca19e79ed938/
SH256 hash:
41618cb3eabd9750fa776f31b8117e4025fd3d03af5e30d62100d84ce8101406
MD5 hash:
994934144a89538302535b4135d4c414
SHA1 hash:
46497b9718efb3538c0414e4b238e6d70c0f4230
Link:
https://www.unpac.me/results/b95545db-fd7e-4f49-bea7-ca19e79ed938/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/41618cb3eabd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/41618cb3eabd9750fa776f31b8117e4025fd3d03af5e30d62100d84ce8101406

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
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.

Malspam

Formbook

Executable exe 41618cb3eabd9750fa776f31b8117e4025fd3d03af5e30d62100d84ce8101406

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/377850/

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