MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b27c2dc3bca2aad4751d22a6f8c7ed19411e96848362e249597e16582cfed7dc. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
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SHA256 hash: b27c2dc3bca2aad4751d22a6f8c7ed19411e96848362e249597e16582cfed7dc
SHA3-384 hash: 5a82022838dcb8312cc15214b5862deb605c64546a51bdae5f352477732965029e328a4debb5829f7669965a6991b5bc
SHA1 hash: 506bc858db1ada26a0d4424d4dfc3535359202a7
MD5 hash: e323f82bc39421fcdf848995f40dc65a
humanhash: equal-coffee-april-pizza
File name:LETTER OF INTENT_#1307-RFQ.exe
Download: download sample
Signature Formbook
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File size:52'224 bytes
First seen:2022-02-17 12:33:06 UTC
Last seen:2022-02-17 14:55:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'476 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:iSktVzNEXxbVw9yMfu0SXxlmMwCK/3deVDs:ApyxbVIGX630VDs
Threatray 17'410 similar samples on MalwareBazaar
TLSH T14133F71A69599E19C5D8BBFC99F1AC825776ACE10120C08FA8FD3F1DA932313DCC526D
File icon (PE):PE icon
dhash icon 174f4559191b1b13 (81 x AgentTesla, 68 x Formbook, 34 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/242244/
Detection(s):
Sanesecurity.Rogue.0hr.20220217-1204.UNOFFICIAL
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Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
darkkomet obfuscated packed
Link:
https://www.filescan.io/uploads/620e40bf875593a3ccddc363/reports/67cce3f5-3db7-4160-8349-3563bd44a1d9/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2fcfdc81-31ec-4b21-b789-3a78ed466ad6
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/941562
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
Tries to detect virtualization through RDTSC time measurements
Uses ping.exe to check the status of other devices and networks
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 574040 Sample: LETTER OF INTENT_#1307-RFQ.exe Startdate: 17/02/2022 Architecture: WINDOWS Score: 100 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Antivirus detection for URL or domain 2->67 69 7 other signatures 2->69 8 LETTER OF INTENT_#1307-RFQ.exe 15 4 2->8         started        process3 dnsIp4 59 kotadiainc.com 103.50.162.146, 443, 49760 PUBLIC-DOMAIN-REGISTRYUS India 8->59 47 C:\...\LETTER OF INTENT_#1307-RFQ.exe.log, ASCII 8->47 dropped 12 LETTER OF INTENT_#1307-RFQ.exe 8->12         started        15 cmd.exe 1 8->15         started        17 cmd.exe 1 8->17         started        19 8 other processes 8->19 file5 process6 signatures7 71 Modifies the context of a thread in another process (thread injection) 12->71 73 Maps a DLL or memory area into another process 12->73 75 Queues an APC in another process (thread injection) 12->75 21 explorer.exe 12->21 injected 77 Uses ping.exe to check the status of other devices and networks 15->77 23 PING.EXE 1 15->23         started        26 conhost.exe 15->26         started        28 PING.EXE 1 17->28         started        30 conhost.exe 17->30         started        32 PING.EXE 1 19->32         started        34 PING.EXE 1 19->34         started        36 PING.EXE 1 19->36         started        38 11 other processes 19->38 process8 dnsIp9 40 autofmt.exe 21->40         started        49 yahoo.com 74.6.231.20 YAHOO-NE1US United States 23->49 51 74.6.231.21 YAHOO-NE1US United States 28->51 42 PING.EXE 1 28->42         started        45 conhost.exe 28->45         started        53 74.6.143.26 YAHOO-3US United States 34->53 55 74.6.143.25 YAHOO-3US United States 38->55 57 192.168.2.1 unknown unknown 38->57 process10 dnsIp11 61 yahoo.com 42->61
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b27c2dc3bca2aad4751d22a6f8c7ed19411e96848362e249597e16582cfed7dc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-02-17 12:34:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wj6c3q54ukvni5i5ektprr7ndfar5fueqnroeskzpylfqlh627oa._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
31168981af16e0fc209774a91e04e5aaf622cacbed12e970b7a35db0705174d6
Formbook
3d0defc77abb415c8854149e73e067b94bdb3fdc638fa7e104bcc4a325dc658a
Formbook
7cbd8cc35b03d65491ad01b6a44b84dc047e6663189554201c24dbfbeb81473c
Formbook
aa067750ad705a1b6176cb6f3f91466c9d5c2ee4457c2466b995bef70c04b240
Formbook
b1e2238ed835357f061456c7a38d0620cef8b78f0e1a9856133cc5b2805e0ed1
Formbook
e8720afe9895124761086a0f00aa515997015669cc5332aebe99d5ea02ca7377
Formbook
+ 17'400 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:6rnk loader rat suricata
Link:
https://tria.ge/reports/220217-prr9raccgl/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of SetThreadContext
Checks computer location settings
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
b27c2dc3bca2aad4751d22a6f8c7ed19411e96848362e249597e16582cfed7dc
MD5 hash:
e323f82bc39421fcdf848995f40dc65a
SHA1 hash:
506bc858db1ada26a0d4424d4dfc3535359202a7
Link:
https://www.unpac.me/results/1a3342bd-be12-44bc-99c7-6f925ce3bf4f/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b27c2dc3bca2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/b27c2dc3bca2aad4751d22a6f8c7ed19411e96848362e249597e16582cfed7dc

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
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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 b27c2dc3bca2aad4751d22a6f8c7ed19411e96848362e249597e16582cfed7dc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/242244/

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