MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9f03efb1bd75e69ea854f15bb0bffc77d8fd67af95daca3b4b7f709ea7441da. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9f03efb1bd75e69ea854f15bb0bffc77d8fd67af95daca3b4b7f709ea7441da
SHA3-384 hash: 091c300d1ea28f96de17195f36e6bcb401be74d63fa2dda99743337dd84deb73ea3101017a8243eeae13abb44caefb6a
SHA1 hash: 5806d235710e6c55aefd3c64a5c163f9f8ed3580
MD5 hash: 22b73dfdf93db8f4750afbf151c28c3e
humanhash: lemon-rugby-william-wisconsin
File name:PO 28600.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:680'960 bytes
First seen:2022-08-01 07:57:25 UTC
Last seen:2022-08-01 08:40:55 UTC
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:rg6SKlpxG/gA5Y4pUNTkoR6rFVXQK5/tvq2aG8:dLlpxG1y4WN3MXF5/ty29
TLSH T1AAE412D136AA460BE13A4FF6F46111008B71927FA523E28D8D8EBCFB5975B4346A0F43
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 4ccccccccc707030 (9 x AgentTesla, 8 x Formbook, 3 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/295503/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.39103.887.1132.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62e7880e8d188266ad351452/reports/e12e63dc-1db8-4009-910c-4a957f86172d/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c5082b18-c9c9-4a0b-872a-90ba16c73bd3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1044028
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b9f03efb1bd75e69ea854f15bb0bffc77d8fd67af95daca3b4b7f709ea7441da/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-08-01 03:14:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xhyd56y325pgt2ufj4k3wc77y56y7vt27fo2zi5uw73qt2tuihna._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/220801-jttygaeca2/
Behaviour
Modifies Internet Explorer settings
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
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Blocklisted process makes network request
Unpacked files
SH256 hash:
6ce10d30b65cac63418339d3879111491ae54e372dde759f5bf054208772a996
MD5 hash:
730ca8085730ec0b18958b3c6b090770
SHA1 hash:
c3d7f5a7a4e0ee928c471b9b0c202aecc764d2fb
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/55714a82-2af1-41da-8d01-972dfdd9fd30/
Parent samples :
bd9dc1d877edc4b2ab86b6b558a2154f26a16207615f5b536c1d008e32795c93
a3b7e19a12b9364599488961a3fff8a906cdf3c8805efbf17c09744e4bb89ce8
b9f03efb1bd75e69ea854f15bb0bffc77d8fd67af95daca3b4b7f709ea7441da
8c6c03179e67fefa80d6958194a77f1b5198fc859151da0748217c3eff5ca38f
9cd3e493e25dfb86a8e0a80be3734072f3401e67a45e65109262fef40d40cff2
56d23db02a878b0ad4bf55573cb6ba4517004192f5ec4da49c43619925b9eaac
SH256 hash:
e276e3d562fe6c342425ed55211e7408bf3435aa83db7b126960190e771d4c5d
MD5 hash:
1f3bc5858e41a5aa955d87f78c280d5f
SHA1 hash:
ffcd6d22e0a12b5d67f2d30c56dfae6ac707b4be
Link:
https://www.unpac.me/results/55714a82-2af1-41da-8d01-972dfdd9fd30/
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
Link:
https://www.unpac.me/results/55714a82-2af1-41da-8d01-972dfdd9fd30/
SH256 hash:
0bafaaceeff614055b0331c803885c6811c463e26455e67da542111205371172
MD5 hash:
5a80afa71f7d1c4d7fa53d6886054072
SHA1 hash:
5d5b8c3defa3cb4f69cd67cb996a43d3cefc8318
Link:
https://www.unpac.me/results/55714a82-2af1-41da-8d01-972dfdd9fd30/
SH256 hash:
a9c5b2c628a47247402ff05d399855caf6f6a22146d44cd0fd9d7fc05a65ba66
MD5 hash:
228ff1006be83039e4de2b5e0475a5b0
SHA1 hash:
3adef5cc343067fa6b9d5e712114dc619c867a72
Link:
https://www.unpac.me/results/55714a82-2af1-41da-8d01-972dfdd9fd30/
SH256 hash:
b9f03efb1bd75e69ea854f15bb0bffc77d8fd67af95daca3b4b7f709ea7441da
MD5 hash:
22b73dfdf93db8f4750afbf151c28c3e
SHA1 hash:
5806d235710e6c55aefd3c64a5c163f9f8ed3580
Link:
https://www.unpac.me/results/55714a82-2af1-41da-8d01-972dfdd9fd30/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b9f03efb1bd7/report/overview.html
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/b9f03efb1bd75e69ea854f15bb0bffc77d8fd67af95daca3b4b7f709ea7441da

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
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 b9f03efb1bd75e69ea854f15bb0bffc77d8fd67af95daca3b4b7f709ea7441da

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/295503/

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