MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 89e6f9466b625c976d594094359d85f257f40bdb4ab80c22c99c36c01f1dc72f. 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 8 File information Comments

SHA256 hash: 89e6f9466b625c976d594094359d85f257f40bdb4ab80c22c99c36c01f1dc72f
SHA3-384 hash: 521c411f98f518891ceeacb3ef461b0641989a3803dc3fd8cb904443b7ce8d29658e0f6e18d8250c044ba3b23c60bf82
SHA1 hash: 601e49bf5a29ecee7f200b9d26f82282daea1cd7
MD5 hash: 5e979db348437a650e7370abfa927947
humanhash: batman-enemy-pip-floor
File name:SecuriteInfo.com.Trojan.DownloaderNET.345.18444.2155
Download: download sample
Signature Formbook
File size:261'184 bytes
First seen:2022-08-24 08:39:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:b30SIBzX8dR8jykpMlqVAV+VI0Z1BvRAuug7:gSIFokGlqqVJ0ZjvRpx7
Threatray 966 similar samples on MalwareBazaar
TLSH T1504412C53BE99483D6980974E8AF4233AFE4A8642EE1853C14D8311E5DA37FF344998B
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 e4dcd8c4d4d4c4d4 (95 x AgentTesla, 51 x Formbook, 12 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
329
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
SecuriteInfo.com.Trojan.DownloaderNET.345.18444.2155
Verdict:
Malicious activity
Analysis date:
2022-08-24 08:42:07 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Searching for synchronization primitives
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed wacatac
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.
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 detection for URL or domain
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)
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 virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 689386 Sample: SecuriteInfo.com.Trojan.Dow... Startdate: 24/08/2022 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 5 other signatures 2->42 10 SecuriteInfo.com.Trojan.DownloaderNET.345.18444.exe 1 2->10         started        process3 file4 30 SecuriteInfo.com.T...T.345.18444.exe.log, ASCII 10->30 dropped 50 Writes to foreign memory regions 10->50 52 Allocates memory in foreign processes 10->52 54 Injects a PE file into a foreign processes 10->54 14 cvtres.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 2 other signatures 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 32 www.www67854.com 38.63.179.231, 49783, 80 COGENT-174US United States 17->32 34 www.faggy.info 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 msiexec.exe 17->21         started        24 autofmt.exe 17->24         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-08-24 08:40:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:bd26 rat spyware stealer trojan
Behaviour
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
Formbook payload
Formbook
Unpacked files
SH256 hash:
b8c8421c52f6febd8d9201050af41b9b09fb2408b2eb05538efaa8c64e8b0436
MD5 hash:
373fec458d19c871e6cf5cb807ba7e7b
SHA1 hash:
12dcf8e39817e9907cb5fb9dbaed00505eb40105
Detections:
win_formbook_g0 win_formbook_auto FormBook
SH256 hash:
f41ba737cc5badd7a6e6e5f531d1f39c1b13fafdb938d767945666c93b030687
MD5 hash:
04320759af7e8fd337b8b27b43936126
SHA1 hash:
496224974798f1b6e27c8dafa0c345cc651fce22
SH256 hash:
89e6f9466b625c976d594094359d85f257f40bdb4ab80c22c99c36c01f1dc72f
MD5 hash:
5e979db348437a650e7370abfa927947
SHA1 hash:
601e49bf5a29ecee7f200b9d26f82282daea1cd7
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_KB_CERT_1f3216f428f850be2c66caa056f6d821
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
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.

Comments