MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db35c1b2866001a5054d699b34dd9b6f8cf6aa8e7d3050facd237fb2633aad65. 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 2 File information Comments

SHA256 hash: db35c1b2866001a5054d699b34dd9b6f8cf6aa8e7d3050facd237fb2633aad65
SHA3-384 hash: 95beabe899791fc3e7792e288edd029f460ce5b25bbd196f539e10a736eb0e0eee8522e136c6104519c0b69e3189e19a
SHA1 hash: 89276e46008aa741091bb23d9cc15acd4c87b5dd
MD5 hash: d3e14048efa538c2a71b190912196906
humanhash: three-oregon-river-potato
File name:SecuriteInfo.com.Trojan.Siggen18.26339.20539.12719
Download: download sample
Signature Formbook
File size:122'368 bytes
First seen:2022-07-21 19:41:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 3072:md7hY7SrOAOkGt6+duWA/t/SHUebbxCbGgKk12qk/Wn/87gUHCzQgtn9MXCk9aPR:QGt+S
TLSH T177C320827145DC9AD45328F2586ED57060B47ECF8169CA0D3B83BF2A94E734334A7B9E
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)
File icon (PE):PE icon
dhash icon f29296968e9e9ea6 (60 x AgentTesla, 37 x RedLineStealer, 35 x Formbook)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
322
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed strictor
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Encrypted powershell cmdline option found
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 671337 Sample: SecuriteInfo.com.Trojan.Sig... Startdate: 21/07/2022 Architecture: WINDOWS Score: 100 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 Antivirus detection for dropped file 2->39 41 9 other signatures 2->41 8 SecuriteInfo.com.Trojan.Siggen18.26339.20539.exe 15 7 2->8         started        process3 dnsIp4 33 mnsemesta1.com 162.241.123.17, 49729, 80 UNIFIEDLAYER-AS-1US United States 8->33 27 C:\Users\user\AppData\Roaming\...\Adobe.exe, PE32 8->27 dropped 29 C:\Users\user\...\Adobe.exe:Zone.Identifier, ASCII 8->29 dropped 31 SecuriteInfo.com.T...26339.20539.exe.log, ASCII 8->31 dropped 45 Creates an undocumented autostart registry key 8->45 47 Encrypted powershell cmdline option found 8->47 49 Writes to foreign memory regions 8->49 51 3 other signatures 8->51 13 MSBuild.exe 8->13         started        16 MSBuild.exe 8->16         started        18 powershell.exe 15 8->18         started        file5 signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 13->53 55 Maps a DLL or memory area into another process 13->55 57 Sample uses process hollowing technique 13->57 59 Queues an APC in another process (thread injection) 13->59 20 explorer.exe 13->20 injected 61 Tries to detect virtualization through RDTSC time measurements 16->61 22 conhost.exe 18->22         started        process9 process10 24 explorer.exe 20->24         started        signatures11 43 Tries to detect virtualization through RDTSC time measurements 24->43
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-21 16:51:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:fs44 rat spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
db35c1b2866001a5054d699b34dd9b6f8cf6aa8e7d3050facd237fb2633aad65
MD5 hash:
d3e14048efa538c2a71b190912196906
SHA1 hash:
89276e46008aa741091bb23d9cc15acd4c87b5dd
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Comments