MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6f71c4a1961a1154820d097720ddd75ea641761305cef62268ad7b588670762. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: b6f71c4a1961a1154820d097720ddd75ea641761305cef62268ad7b588670762
SHA3-384 hash: 2ca34eec27a2c75f99259b30146c1945e64f68c760abdc216e2a3b41e61aefe9a9a1d4a0f1b930efac38fbfda9f159cb
SHA1 hash: 34129d1ad57c2f81859c0c3efccebe63b7b8345f
MD5 hash: a3612da468b903fcc8f9d0412e9fa6d5
humanhash: tennessee-wisconsin-bluebird-fillet
File name:Statement of Account.pdf.exe
Download: download sample
Signature Formbook
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File size:704'512 bytes
First seen:2022-08-24 13:17:01 UTC
Last seen:2022-09-01 00:29:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:ZSL5I7Tu3XDG2G2BkZ7q9754jdQfQ84NDZj0IyOIQhZikmbyZmVWr8y:kL5u4G2G9Z7qtgHNDZSQroWgy
TLSH T11CE4016036E90B5BD63E4BFA0430A4D067B9BD1B369AEB8E6CC071DD1A35B41C951F23
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13101/52/3)
8.6% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
320
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Statement of Account.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-08-24 13:19:11 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/91e67328-d699-46e5-95a2-d01e4144974e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/300858/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1506.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Launching the process to change network settings
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug hacktool packed
Link:
https://www.filescan.io/uploads/63062548f205e2ee7673e4e9/reports/b845600a-99ec-4033-b348-46eefd7d673f/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/25362edf-b0f1-42ff-854d-bef2d443948f
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1057002
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 689519 Sample: Statement of Account.pdf.exe Startdate: 24/08/2022 Architecture: WINDOWS Score: 100 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 Yara detected AntiVM3 2->55 57 11 other signatures 2->57 10 Statement of Account.pdf.exe 7 2->10         started        process3 dnsIp4 49 192.168.2.1 unknown unknown 10->49 39 C:\Users\user\AppData\...\nHLjcXUQPRh.exe, PE32 10->39 dropped 41 C:\Users\...\nHLjcXUQPRh.exe:Zone.Identifier, ASCII 10->41 dropped 43 C:\Users\user\AppData\Local\...\tmp77AB.tmp, XML 10->43 dropped 45 C:\Users\...\Statement of Account.pdf.exe.log, ASCII 10->45 dropped 61 Writes to foreign memory regions 10->61 63 Allocates memory in foreign processes 10->63 65 Adds a directory exclusion to Windows Defender 10->65 67 Injects a PE file into a foreign processes 10->67 15 MSBuild.exe 10->15         started        18 powershell.exe 25 10->18         started        20 schtasks.exe 1 10->20         started        file5 signatures6 process7 signatures8 75 Modifies the context of a thread in another process (thread injection) 15->75 77 Maps a DLL or memory area into another process 15->77 79 Sample uses process hollowing technique 15->79 81 2 other signatures 15->81 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 47 www.conglaoshi.com 22->47 59 System process connects to network (likely due to code injection or exploit) 22->59 30 colorcpl.exe 22->30         started        33 autofmt.exe 22->33         started        signatures11 process12 signatures13 69 Modifies the context of a thread in another process (thread injection) 30->69 71 Maps a DLL or memory area into another process 30->71 73 Tries to detect virtualization through RDTSC time measurements 30->73 35 cmd.exe 1 30->35         started        process14 process15 37 conhost.exe 35->37         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/b6f71c4a1961a1154820d097720ddd75ea641761305cef62268ad7b588670762/
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
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Status:
Malicious
First seen:
2022-08-24 13:16:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
53
AV detection:
26 of 39 (66.67%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w33rysqzmgqrksba2clxedo5oxvgif3bgboo6yrgrll3lcdha5ra._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:sg94 rat spyware stealer trojan
Link:
https://tria.ge/reports/220824-qjd8laehe8/
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
Formbook payload
Formbook
Unpacked files
SH256 hash:
5f03e4a3ced13c509e1bff7eef4ea91ef8fbf7558e828c31bdff2c525373d171
MD5 hash:
ba381b26613f340f0c2bc07a11811397
SHA1 hash:
df451b830bb7941326e0232b93c97d30b0177d15
Detections:
win_formbook_g0
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win_formbook_auto
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FormBook
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Link:
https://www.unpac.me/results/6fd8a589-33d3-48a7-bded-cc253cecf079/
Parent samples :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 hash:
ceda93fdfce3ad8e4f800d4f2d940d793b68b4b0b254b652bf42e13dbd189ba7
MD5 hash:
786afe844ec1723b635cace747b60efd
SHA1 hash:
fa647a584a7fcad392147a182e3a2435b3ad5bb9
Link:
https://www.unpac.me/results/6fd8a589-33d3-48a7-bded-cc253cecf079/
SH256 hash:
9453ad2789ee11ce8d9268d5bf8ded60dfa9a15108f949efb836d5202945f12a
MD5 hash:
68082cbbb4464f14faff3b9ce1238937
SHA1 hash:
ec9187e38222a3498b30de89dc3e981b84a0a93f
Link:
https://www.unpac.me/results/6fd8a589-33d3-48a7-bded-cc253cecf079/
SH256 hash:
cefbdbfc85e050d7d6fd3a1c1b1127dfd817dbc3baa18137dce7500ed3121d25
MD5 hash:
14603441e91366f700c718168ef58ab2
SHA1 hash:
4d97f2486d2e5d9d18dfd65785eb062a526a1d92
Link:
https://www.unpac.me/results/6fd8a589-33d3-48a7-bded-cc253cecf079/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/6fd8a589-33d3-48a7-bded-cc253cecf079/
SH256 hash:
b6f71c4a1961a1154820d097720ddd75ea641761305cef62268ad7b588670762
MD5 hash:
a3612da468b903fcc8f9d0412e9fa6d5
SHA1 hash:
34129d1ad57c2f81859c0c3efccebe63b7b8345f
Link:
https://www.unpac.me/results/6fd8a589-33d3-48a7-bded-cc253cecf079/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b6f71c4a1961/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/b6f71c4a1961a1154820d097720ddd75ea641761305cef62268ad7b588670762

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/300858/

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