MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 566b1792d888a840627496095ec7ef8fb969dda1390de7cbb33b91ad3a2005ac. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: 566b1792d888a840627496095ec7ef8fb969dda1390de7cbb33b91ad3a2005ac
SHA3-384 hash: 77150e70609826c612d3b9001aa535bee24341bcca2c41e4c1e625fdbb70ee390c473150180d463cbb72760217458b29
SHA1 hash: 33660eb364350d6f4f67e0215e88b15f40874848
MD5 hash: 2c348af3871bdd79894a360f06b19005
humanhash: ack-kentucky-purple-april
File name:Quotation-pdf-.exe
Download: download sample
Signature Formbook
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File size:841'216 bytes
First seen:2022-10-26 18:22:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:5EdEAlqe+dLLNkG7h3inwGXlSYg8F8KrTrJ8NFpOwsKQV9q4:5BX5hSn7bF8K9SpTDQV
TLSH T1C105CE02BAE6CF50C7884773C4E6DE095BF5C4839663E75F2290B3B529233768852DE9
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Quotation-pdf-.exe
Verdict:
Malicious activity
Analysis date:
2022-10-26 18:25:43 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/9a672ff3-88e4-477a-9284-db4464a3182e

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/324516/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.738.7605.14934.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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/f8069a1b-058b-4f50-9f1b-55eee175c90c
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1098690
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
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 dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 731341 Sample: Quotation-pdf-.exe Startdate: 26/10/2022 Architecture: WINDOWS Score: 100 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for URL or domain 2->62 64 Sigma detected: Scheduled temp file as task from temp location 2->64 66 9 other signatures 2->66 10 Quotation-pdf-.exe 7 2->10         started        14 qYVkSZo.exe 5 2->14         started        process3 file4 44 C:\Users\user\AppData\Roaming\qYVkSZo.exe, PE32 10->44 dropped 46 C:\Users\user\...\qYVkSZo.exe:Zone.Identifier, ASCII 10->46 dropped 48 C:\Users\user\AppData\Local\...\tmpA121.tmp, XML 10->48 dropped 50 C:\Users\user\...\Quotation-pdf-.exe.log, ASCII 10->50 dropped 74 Uses schtasks.exe or at.exe to add and modify task schedules 10->74 76 Adds a directory exclusion to Windows Defender 10->76 78 Tries to detect virtualization through RDTSC time measurements 10->78 16 Quotation-pdf-.exe 10->16         started        19 powershell.exe 21 10->19         started        21 schtasks.exe 1 10->21         started        80 Multi AV Scanner detection for dropped file 14->80 82 Machine Learning detection for dropped file 14->82 23 qYVkSZo.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 16->52 54 Maps a DLL or memory area into another process 16->54 56 Sample uses process hollowing technique 16->56 58 Queues an APC in another process (thread injection) 16->58 27 explorer.exe 16->27 injected 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 25->33         started        process8 process9 35 raserver.exe 27->35         started        38 msiexec.exe 27->38         started        signatures10 68 Modifies the context of a thread in another process (thread injection) 35->68 70 Maps a DLL or memory area into another process 35->70 72 Tries to detect virtualization through RDTSC time measurements 35->72 40 cmd.exe 1 35->40         started        process11 process12 42 conhost.exe 40->42         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/566b1792d888a840627496095ec7ef8fb969dda1390de7cbb33b91ad3a2005ac/
Threat name:
ByteCode-MSIL.Trojan.Leonem
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Status:
Malicious
First seen:
2022-10-24 17:56:41 UTC
File Type:
PE (.Net Exe)
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kzvrpewyrcueaytusyev5r7pr64wtxnbheg6ps5thoi22oraawwa._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:a20e rat spyware stealer trojan
Link:
https://tria.ge/reports/221026-w1gb6sgegj/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
401d37bb542e818ee49038c652fa9d769d216b912fbf638b768d2370cd184854
MD5 hash:
705e49ed906ae2317fb8f126f2ab2f4b
SHA1 hash:
33996978fe870cb59c5bf620bf4c38415ffe1e37
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/cd1e3e41-e342-4769-832e-6e6a10ce39db/
Parent samples :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 hash:
5f0d2554ba9a600fcbd503e8d968d8d9ccc839c208543a587f5728442ed81099
MD5 hash:
35fa3045dca9ff496edbedd0d252be0a
SHA1 hash:
e226cd67d6f81fcc1f2fa01aee526827f2d7fdbe
Link:
https://www.unpac.me/results/cd1e3e41-e342-4769-832e-6e6a10ce39db/
SH256 hash:
13c14cef0c56937beaba9aa31dab628e14a5b0d32bfece19160541a279dfea7f
MD5 hash:
8ed082b8a75c3cdfc2e2f5840275cf7f
SHA1 hash:
c6f23872804d4aafc1667110524aa3419028d5be
Link:
https://www.unpac.me/results/cd1e3e41-e342-4769-832e-6e6a10ce39db/
SH256 hash:
3ba16a92b2b40d38c6e5e30f882a4c60b3838611868d990b7d986eb4018c17cb
MD5 hash:
16d6f358cc62b12dc869da8a59b03eda
SHA1 hash:
5eaf3662fbd4193086df2ba7233e9652542be8a3
Link:
https://www.unpac.me/results/cd1e3e41-e342-4769-832e-6e6a10ce39db/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/cd1e3e41-e342-4769-832e-6e6a10ce39db/
SH256 hash:
dbdbe9e5947247e3dc66a1eeae71862dc2bef5702b5394ec48d3ab2192bcfdef
MD5 hash:
1b7ca9a888583fcb38a8f1fc8f746bdc
SHA1 hash:
3a88ba69cf0a1285f96f9d1b8446682476629b53
Link:
https://www.unpac.me/results/cd1e3e41-e342-4769-832e-6e6a10ce39db/
SH256 hash:
566b1792d888a840627496095ec7ef8fb969dda1390de7cbb33b91ad3a2005ac
MD5 hash:
2c348af3871bdd79894a360f06b19005
SHA1 hash:
33660eb364350d6f4f67e0215e88b15f40874848
Link:
https://www.unpac.me/results/cd1e3e41-e342-4769-832e-6e6a10ce39db/
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/566b1792d888a840627496095ec7ef8fb969dda1390de7cbb33b91ad3a2005ac

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: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 566b1792d888a840627496095ec7ef8fb969dda1390de7cbb33b91ad3a2005ac

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/324516/

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