MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a16f1b224236623703e2d71d4abc9e6228c90b96776c6663892387325c8e6e90. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments

SHA256 hash: a16f1b224236623703e2d71d4abc9e6228c90b96776c6663892387325c8e6e90
SHA3-384 hash: 6690a282e6020fe8a8e69f3863469be34f26aeafa124843bcc943fe9be6edf6699190f8f78f269e5b045d2a76df94809
SHA1 hash: e389974f47c255be92c3f1e748cc1cd3c9e0108b
MD5 hash: c0c88c996e3628b4f76f58027f367b49
humanhash: summer-carolina-illinois-diet
File name:a16f1b224236623703e2d71d4abc9e6228c90b96776c6663892387325c8e6e90
Download: download sample
Signature Formbook
File size:708'096 bytes
First seen:2023-02-06 15:03:36 UTC
Last seen:2023-02-06 16:40:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:WxZEc/75z8RNrZWxUYpCwnsKPXqWeh3ih9HlA:AN8bFjqPXqBYTu
TLSH T12DE4029A826CCA6BDA9903FF25B010499BB121B7F162D70D0FEFA0D0858B7805555BEF
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
185
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
a16f1b224236623703e2d71d4abc9e6228c90b96776c6663892387325c8e6e90
Verdict:
Malicious activity
Analysis date:
2023-02-06 15:05:17 UTC
Tags:
formbook xloader trojan stealer

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

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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
Adds a directory exclusion to Windows Defender
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 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 domain / URL
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
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 799528 Sample: ieLCWXFQYe.exe Startdate: 06/02/2023 Architecture: WINDOWS Score: 100 68 Snort IDS alert for network traffic 2->68 70 Multi AV Scanner detection for domain / URL 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 9 other signatures 2->74 10 ieLCWXFQYe.exe 7 2->10         started        14 rDdfvmnz.exe 5 2->14         started        process3 file4 46 C:\Users\user\AppData\Roaming\rDdfvmnz.exe, PE32 10->46 dropped 48 C:\Users\...\rDdfvmnz.exe:Zone.Identifier, ASCII 10->48 dropped 50 C:\Users\user\AppData\Local\...\tmpBD27.tmp, XML 10->50 dropped 52 C:\Users\user\AppData\...\ieLCWXFQYe.exe.log, ASCII 10->52 dropped 82 Uses schtasks.exe or at.exe to add and modify task schedules 10->82 84 Writes to foreign memory regions 10->84 86 Allocates memory in foreign processes 10->86 92 2 other signatures 10->92 16 RegSvcs.exe 10->16         started        19 powershell.exe 21 10->19         started        21 schtasks.exe 1 10->21         started        88 Multi AV Scanner detection for dropped file 14->88 90 Machine Learning detection for dropped file 14->90 23 RegSvcs.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 16->60 62 Maps a DLL or memory area into another process 16->62 64 Sample uses process hollowing technique 16->64 66 2 other signatures 16->66 27 explorer.exe 2 1 16->27 injected 31 conhost.exe 19->31         started        33 conhost.exe 21->33         started        35 conhost.exe 25->35         started        process8 dnsIp9 54 www.dhjzfs.com 103.204.109.2, 49734, 80 HENGTONG-IDC-LLCUS Hong Kong 27->54 56 www.themetaverseloyalties.com 75.2.26.18, 49729, 80 AMAZON-02US United States 27->56 58 3 other IPs or domains 27->58 94 System process connects to network (likely due to code injection or exploit) 27->94 37 svchost.exe 27->37         started        40 WWAHost.exe 27->40         started        signatures10 process11 signatures12 76 Modifies the context of a thread in another process (thread injection) 37->76 78 Maps a DLL or memory area into another process 37->78 80 Tries to detect virtualization through RDTSC time measurements 37->80 42 cmd.exe 1 37->42         started        process13 process14 44 conhost.exe 42->44         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-01-31 16:22:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
24 of 39 (61.54%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:d0a7 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Gathers network information
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
Unpacked files
SH256 hash:
8892eba2280a5329f01601f05660f2cf6378b26079c711918122e6254f56053e
MD5 hash:
95b0147ddcfb4c39c926719904d486b8
SHA1 hash:
8b29c6db7eefc6fc2bff55348d17c1ce98582c49
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
178cc7474b323b0ae6b3095ff67127726530d9d44be5cb58ba7315ef3a1199ad
MD5 hash:
159af9cf7f94d64c8120c80268965306
SHA1 hash:
fb41ab37af2c83e96d97e9cd066f90e72d4887ea
SH256 hash:
24f9ac574b2f2891f75145464114bf23ac852d617b545d31924029805b34db5f
MD5 hash:
c61144ae049f5c548197d67752ee5c39
SHA1 hash:
d6044e67e87b496d7ce32038fa3cd89301263bbc
SH256 hash:
54d781f0dee6692c47390edf1ada295fb17a7e80ed5ccd58ab14c6ddf80a0ad8
MD5 hash:
4f6caebd865502f7c8046fbae3284c61
SHA1 hash:
be357e832bf6f61454875b37a1759cf1c5fa5ca4
SH256 hash:
29e3e2fcf1c54c64f5af16e1327bebd8ecb77f85f5e1bb8fac2b8d380ef8d04c
MD5 hash:
830bcc8074f98bfb397b20fc443771b6
SHA1 hash:
4bdae6a39b40c1bf678203fff6af979fe9b2230f
SH256 hash:
a16f1b224236623703e2d71d4abc9e6228c90b96776c6663892387325c8e6e90
MD5 hash:
c0c88c996e3628b4f76f58027f367b49
SHA1 hash:
e389974f47c255be92c3f1e748cc1cd3c9e0108b
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.

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