MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bc91158db7c9edb77fa2d26fda6efd017b8aa70c3bc68d5542059e3f44b9e77. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: 1bc91158db7c9edb77fa2d26fda6efd017b8aa70c3bc68d5542059e3f44b9e77
SHA3-384 hash: 600960d890fd5d447b455bbc12ced29f3120cbcc74358e2fd9a218a91e42b766baa78d2bff2af17a858711000da41961
SHA1 hash: 83014340b653b3697a7f026a10f181e7412ab2c2
MD5 hash: b98efeee0211863273f50d8029b0f19b
humanhash: lima-twelve-quiet-neptune
File name:INVOICES.exe
Download: download sample
Signature Formbook
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File size:722'944 bytes
First seen:2021-08-05 10:59:05 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:jV7hjtQiPEx1mz5v7hD3qkpxmJApgmh8RQ79KB7AtN37k69JtcWZMSLHXx:jG+r3qkSJ0H8m7qAtFJbZR3x
Threatray 7'406 similar samples on MalwareBazaar
TLSH T1FAF4E0358A591EDFC178A47A60052A1429F7C1BBB7F2F7063DE02CEA24D63D44BB960D
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICES.exe
Verdict:
Malicious activity
Analysis date:
2021-08-05 11:02:04 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/198ff23c-41a1-48f7-bb3c-f72245904b42

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/176615/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system 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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/74c03b3d-f777-459b-8311-d6bd1706a907
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/827741
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Process Start Without DLL
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 460173 Sample: INVOICES.exe Startdate: 05/08/2021 Architecture: WINDOWS Score: 100 29 www.melissabelmontefotografias.com 2->29 31 melissabelmontefotografias.com 2->31 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 9 other signatures 2->53 10 INVOICES.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\INVOICES.exe.log, ASCII 10->27 dropped 55 Writes to foreign memory regions 10->55 57 Injects a PE file into a foreign processes 10->57 14 RegSvcs.exe 10->14         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 2 other signatures 14->65 17 raserver.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Tries to detect virtualization through RDTSC time measurements 17->43 23 cmd.exe 1 17->23         started        33 www.linguisticpartner.com 54.38.220.85, 49757, 80 OVHFR France 20->33 35 mpsaklera.com 72.44.69.242, 49761, 80 MULTA-ASN1US United States 20->35 37 8 other IPs or domains 20->37 45 System process connects to network (likely due to code injection or exploit) 20->45 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1bc91158db7c9edb77fa2d26fda6efd017b8aa70c3bc68d5542059e3f44b9e77/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-08-05 11:00:06 UTC
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dpercwg3pspnw572futp3jxp2al3rktqyo6grvkuebm6h5cltz3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
6afa5e287f69f392b8481a94ebb1729c606a1f1023820e79e942ad40dfe96859
Formbook
6f42be9adbf8a5232ff93cbbd74b5616319ed32863c9b5cc9f6fb9383d618151
Formbook
790898f9518c146e7ffa430b975ee0f5bc162b6b5a5dba008e0572741312bc19
Formbook
81cbdffd1b44ca983180456d058b8eaadf51adbd19600dbbde68be7a4ef09a54
Formbook
c6a1a1a68b5faac43930deeab9cd6745bde62869786e21e0681b3dc0973afa80
Formbook
+ 7'396 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat suricata
Link:
https://tria.ge/reports/210805-srg39pn83j/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.inverservi.com/m6b5/
Unpacked files
SH256 hash:
3d7aebc5f0493c028605673f6114e2340a528b3b485f84896e33688e470089f8
MD5 hash:
c09f91c4935fabda697e9435f0b6c18e
SHA1 hash:
43d58aa0c78c8025d7d3b494739a9b4acb7a9500
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/602e7823-a4d3-4149-9ae4-4e6c066f1603/
Parent samples :
3ad516ed1d59d2a83e03dd014de474999c1d20885639cd2f77c1108c636636df
81cbdffd1b44ca983180456d058b8eaadf51adbd19600dbbde68be7a4ef09a54
6afa5e287f69f392b8481a94ebb1729c606a1f1023820e79e942ad40dfe96859
1bc91158db7c9edb77fa2d26fda6efd017b8aa70c3bc68d5542059e3f44b9e77
7c071823d86f7f37eb038add1e274db23c722612d74602e11496d0b4e312103a
ffb4062f3105628be393872c098765b9a7736911cb8fee4ff571b006a891c8a8
18b7d102ed7c43b96306fcf3616a4e96add77a7d2c55296dd059f974ef8ddcf5
SH256 hash:
aed00f82f1772e5a403cce9c1349202c8371e67ed9ef19a33cac0bf2a411f3c1
MD5 hash:
c273f926e2a29bd62cc8f27b569a0b2a
SHA1 hash:
e08d302cab3e11d776599a6b0537207fce6f9c51
Link:
https://www.unpac.me/results/602e7823-a4d3-4149-9ae4-4e6c066f1603/
SH256 hash:
298b6f378be162e07e18f878137560e990680eb1006dbe89485c7cd0ac122fd1
MD5 hash:
e2bdb74b210b819c3219969fab865c28
SHA1 hash:
85443f57567b33da2771dfa8051fd5c4fd9a74a1
Link:
https://www.unpac.me/results/602e7823-a4d3-4149-9ae4-4e6c066f1603/
SH256 hash:
1bc91158db7c9edb77fa2d26fda6efd017b8aa70c3bc68d5542059e3f44b9e77
MD5 hash:
b98efeee0211863273f50d8029b0f19b
SHA1 hash:
83014340b653b3697a7f026a10f181e7412ab2c2
Link:
https://www.unpac.me/results/602e7823-a4d3-4149-9ae4-4e6c066f1603/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1bc91158db7c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/1bc91158db7c9edb77fa2d26fda6efd017b8aa70c3bc68d5542059e3f44b9e77

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:pe_imphash
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Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 1bc91158db7c9edb77fa2d26fda6efd017b8aa70c3bc68d5542059e3f44b9e77

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/176615/

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