MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43963e1c6c61b149cecadcf3d653c197836f104e2396a174ff0cfae18f041ace. 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 3 File information Comments
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SHA256 hash: 43963e1c6c61b149cecadcf3d653c197836f104e2396a174ff0cfae18f041ace
SHA3-384 hash: f8452c0966190144c5f2b62d0cf6c72ab7f43490105930a8d3ac26b3f2064109a4d2ae36b4652305fd68af245e315de7
SHA1 hash: c7142f7f7c882b0822a5ad89de5d4d9bd971f100
MD5 hash: c391e7482ede48d44965004653d83212
humanhash: alanine-wisconsin-spring-quiet
File name:RFQuote.PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:785'920 bytes
First seen:2022-06-16 07:36:10 UTC
Last seen:2022-06-16 08:48:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:+ujTQ/BdU9sfBhc9qGgWqXHF/xfkPwVwu9Nequ/q4wBnWLzpjtT7/237t:q/UK5hc2pXfkPwVr95vEHp17O7
TLSH T1C3F4E00A75ABCE62E2950377D0D68420E7B6828681D6F70B276C13E5DD937CFC943A87
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/280586/
Detection(s):
SecuriteInfo.com.Variant.Ser.Lazy.1060.7397.21204.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62aaddefc07f2e38a14ced78/reports/449cede2-4ecc-4bcc-9d5f-6e2e6f357591/overview
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/fbda3514-9348-4c5f-aa10-107ee66fa05b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1014339
Signature
.NET source code contains method to dynamically call methods (often used by packers)
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 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)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/43963e1c6c61b149cecadcf3d653c197836f104e2396a174ff0cfae18f041ace/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-06-15 12:58:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
23 of 26 (88.46%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iold4hdmmgyuttwk3tz5mu6bs6bw6ecoeolkc5h7bt5oddyedlha._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:heqa loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220616-jfs41shbfk/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
5c2aabda88477a202f53c20cc91650e30d91faf44f0d2891a3f2b90ddb8d0ca9
MD5 hash:
5a7bae48076b47cc83ef2ed4e34408c6
SHA1 hash:
dbd68d21a3d270db3ae79f15d17952776c29fbd3
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4e2a3681-82b1-47ea-9ccb-cc9f4d35bb6d/
Parent samples :
cb2d3cd221225e675584cb8ab415b856c860e003c03f408fa5398c512a47c98a
7b4e5aa55cbdd7022d83fb2a9b0f84744ad992fcee7633ad0e109197ebe15de7
43963e1c6c61b149cecadcf3d653c197836f104e2396a174ff0cfae18f041ace
SH256 hash:
fe78017f2153de0c5ca645c4255899ab044502fe5c77d5c04ced635d9fe981d9
MD5 hash:
ab47b292d4d39311539a0b97e6661f4f
SHA1 hash:
54cd9efbebe4f41b23e6f24fffac0da8f72d921b
Link:
https://www.unpac.me/results/4e2a3681-82b1-47ea-9ccb-cc9f4d35bb6d/
SH256 hash:
da44d3dcc288e82c4ba586f8f466ddeeffcaaa7a982a8d5d9749f629c0f777ee
MD5 hash:
795eaf3811824203fa3187f898387511
SHA1 hash:
4a0c644b34273dd2c7604f019e29d6ab09b90865
Link:
https://www.unpac.me/results/4e2a3681-82b1-47ea-9ccb-cc9f4d35bb6d/
SH256 hash:
727e4586939e96ef39843853a65e507a93cdfc18304ca2302902f8f0a5f6dbcd
MD5 hash:
1e36b59b6c85275b19ed3cabe417764c
SHA1 hash:
2f324e06daa8a8d579ce6ebd5fecf473540586f4
Link:
https://www.unpac.me/results/4e2a3681-82b1-47ea-9ccb-cc9f4d35bb6d/
SH256 hash:
43963e1c6c61b149cecadcf3d653c197836f104e2396a174ff0cfae18f041ace
MD5 hash:
c391e7482ede48d44965004653d83212
SHA1 hash:
c7142f7f7c882b0822a5ad89de5d4d9bd971f100
Link:
https://www.unpac.me/results/4e2a3681-82b1-47ea-9ccb-cc9f4d35bb6d/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/43963e1c6c61/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/43963e1c6c61b149cecadcf3d653c197836f104e2396a174ff0cfae18f041ace

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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 43963e1c6c61b149cecadcf3d653c197836f104e2396a174ff0cfae18f041ace

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/280586/

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