MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5aa64b3eef03b9c837e37102be20cb4f537c524b2a2531bf1bf6dd6a02461d7e. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5aa64b3eef03b9c837e37102be20cb4f537c524b2a2531bf1bf6dd6a02461d7e
SHA3-384 hash: 7d3b0db638c37f28fb660b78106c271a98d3e3dd45989c45a7bc3a0ee0ec92a05d487c984a24248b96605cc55deed726
SHA1 hash: 3998d8651f6a07c33ba730fcee7f0e689b962e6c
MD5 hash: 5856cf17f0da125336f20a5a4fae5121
humanhash: berlin-rugby-quiet-louisiana
File name:REQUEST FOR QUOTATION.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:655'213 bytes
First seen:2021-04-02 06:41:14 UTC
Last seen:2021-04-04 14:58:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ced282d9b261d1462772017fe2f6972b (127 x Formbook, 113 x GuLoader, 70 x RemcosRAT)
ssdeep 12288:Y0dhClzIrxQ2dqljmFTdEKu9W/p/7s/1h:wXBgTixMF8b
Threatray 4'488 similar samples on MalwareBazaar
TLSH 0FD42323A260E6B3CF294370291E5D078FE2747AD2D16A8F5BF56213D667BB2040F593
Reporter cocaman
Tags:exe FormBook SWIFT

Intelligence

File Origin
# of uploads :
4
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Factura.exe
Verdict:
Malicious activity
Analysis date:
2021-04-02 06:30:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/84e12801-d7ba-418c-9297-25ae5dee55cf

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/131621/
Detection(s):
SecuriteInfo.com.Trojan.Siggen13.296.3994.27834.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Sending a UDP request
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser 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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/758ae177-8714-493c-9eee-33a170899501
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/663415
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to prevent local Windows debugging
Detected unpacking (changes PE section rights)
Found 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 (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 380637 Sample: REQUEST FOR QUOTATION.exe Startdate: 02/04/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 10 other signatures 2->44 10 REQUEST FOR QUOTATION.exe 18 2->10         started        process3 file4 30 C:\Users\user\AppData\...\ao8h50tzy8w3ft.dll, PE32 10->30 dropped 54 Maps a DLL or memory area into another process 10->54 14 REQUEST FOR QUOTATION.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 32 www.metabolytix.com 17->32 34 www.avantfarme.com 17->34 36 4 other IPs or domains 17->36 46 System process connects to network (likely due to code injection or exploit) 17->46 21 raserver.exe 17->21         started        24 autochk.exe 17->24         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5aa64b3eef03b9c837e37102be20cb4f537c524b2a2531bf1bf6dd6a02461d7e/
Threat name:
Win32.Trojan.SpyNoon
Create hunting rule
Status:
Malicious
First seen:
2021-04-02 02:31:39 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
11 of 42 (26.19%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lktewpxpao44qn7doebl4iglj5jxyuslfistdpy363owuasgdv7a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3b6134b61b84f0653135f7372c8fafe9dd0a35cd658a510de22b9dd9f8bf6257
Formbook
80eae8d63facb880887f4f54f862128e8d28e2a706ad0f9bad806e9b98fa7e3e
Formbook
851ee4f67cc28e3634b0062d77f62222d026c4e9674a894bcdd5b6c6e6bda376
Formbook
8c5a90a4c4470d05fff7757920aa0a8bf56edab04f4eb926ba789652f1bfc74c
Formbook
9433390a8374d47e62017b03c8d949af363e1f1aaa5247a2e320fc611c42f138
Formbook
988d84650b91424e291cb84ef84433cbd4214622365b226d925d71ffda0bccb8
Formbook
a01cc1fb91c9f7d7490e45a84b861e7188a0f3d97769710af895ee843a19699c
Formbook
a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051
Formbook
d69345d398849a377103e09925aca369a6ee8fdaca08745d3bbb02aa79eb2861
Formbook
d8e0edf1cca3b6edefcd830e233131c593997b5bd4454891dc1b70614862f718
Formbook
+ 4'478 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210402-b85mfs63b6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.riceandginger.com/fcn/
Unpacked files
SH256 hash:
a15d8b99cef52ac6fd1dfd76f4e544e187b23129a034a1603e3a6614bd3b85b6
MD5 hash:
2c4344883918efc832669f00eba75bc4
SHA1 hash:
ec5521e25e965366b56886f1e208b69ea1177527
Link:
https://www.unpac.me/results/61b5048e-3af6-4d5e-a543-5aed1841d053/
SH256 hash:
5aa64b3eef03b9c837e37102be20cb4f537c524b2a2531bf1bf6dd6a02461d7e
MD5 hash:
5856cf17f0da125336f20a5a4fae5121
SHA1 hash:
3998d8651f6a07c33ba730fcee7f0e689b962e6c
Link:
https://www.unpac.me/results/61b5048e-3af6-4d5e-a543-5aed1841d053/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/5aa64b3eef03b9c837e37102be20cb4f537c524b2a2531bf1bf6dd6a02461d7e

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

gz b502d8da5e084f6412b6c5081c4de851bf8c7e3b8dbd6636dd8420482f8d4c1e

Formbook

Executable exe 5aa64b3eef03b9c837e37102be20cb4f537c524b2a2531bf1bf6dd6a02461d7e

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 b502d8da5e084f6412b6c5081c4de851bf8c7e3b8dbd6636dd8420482f8d4c1e
Cape
Cape
https://www.capesandbox.com/analysis/131621/
  
Dropped by
SHA256 c1f42cb0a72682228d22ff1a35418f5acc381e46331bad4275ed77489f8a2388

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