MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7399f403d9fc22c965e01191f13c07d465102ab0fce7194fe55fccbd07b1134e. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7399f403d9fc22c965e01191f13c07d465102ab0fce7194fe55fccbd07b1134e
SHA3-384 hash: 05e4cc5abdc8fa8627c1339b2f21b691047be43d01b34d31e2898824f769c18cde3eda45e5bf2481d005e1e2b54da2a7
SHA1 hash: ac812044f42822a4bdfac67fc59627349d8c74f2
MD5 hash: af93e16fadcf506d949ebc2d205a2808
humanhash: stairway-bulldog-ohio-cardinal
File name:SecuriteInfo.com.Variant.Tedy.117031.4042.3221
Download: download sample
Signature Formbook
Create hunting rule
File size:535'040 bytes
First seen:2022-06-06 16:34:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:cy5IPiwwN139mz6oT74HSqdACOiBgZlfHH3uO3VNceYy9Ly2QpXpb0L:cyLw0pQ6K4HSqd3BwneO3VND9
TLSH T1D7B4011E379C170FE62FEA3A18A1E059E2BBB51B6F03F90B1DC9439A2831645BC5605D
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
344
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Variant.Tedy.117031.4042.3221
Verdict:
Suspicious activity
Analysis date:
2022-06-06 16:42:07 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5cc73385-7fe9-47da-bdd5-b96a1231b4e6

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/277098/
Detection(s):
SecuriteInfo.com.Variant.Tedy.117031.4042.3221.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Adding an access-denied ACE
Launching a process
Sending a custom TCP request
Searching for synchronization primitives
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/629e2d09bea023f99d87c7ab/reports/1dabf3bb-6c6b-49f3-8160-99b6488cfc6f/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/5e2968d0-9484-490e-8560-40052c3b8f41
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1007536
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Found 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)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7399f403d9fc22c965e01191f13c07d465102ab0fce7194fe55fccbd07b1134e/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-06-06 14:55:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oom7ia6z7qrmszpacgi7cpah2rsrakvq7ttrst7fl7gl2b5rcnha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:t56h rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220606-t3ng6ahgf3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
a1a9afd1aa216f23a3f6a6b628df3e6fbb9fd4ce208db781315a88ec8c9a1bfa
MD5 hash:
a82eb81708d051142c0fd07af96e9054
SHA1 hash:
6bad8e8b27741cbe537cd09b02773ea85ddd9646
Link:
https://www.unpac.me/results/4546e8ba-28a1-47c7-bb26-9ce8522289c5/
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
Link:
https://www.unpac.me/results/4546e8ba-28a1-47c7-bb26-9ce8522289c5/
SH256 hash:
7399f403d9fc22c965e01191f13c07d465102ab0fce7194fe55fccbd07b1134e
MD5 hash:
af93e16fadcf506d949ebc2d205a2808
SHA1 hash:
ac812044f42822a4bdfac67fc59627349d8c74f2
Link:
https://www.unpac.me/results/4546e8ba-28a1-47c7-bb26-9ce8522289c5/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7399f403d9fc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/7399f403d9fc22c965e01191f13c07d465102ab0fce7194fe55fccbd07b1134e

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/277098/

Comments