MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 78e7401ff95f4267f226bd32e633f6000dcd202d3611717508b1d7752ea21c55. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: 78e7401ff95f4267f226bd32e633f6000dcd202d3611717508b1d7752ea21c55
SHA3-384 hash: 96c46aaac7e16abb55b3c0b984d4b2d06da55cbacb2449068899da2944430d391717b2af0b7c51de034ef5bd5009c7a7
SHA1 hash: 1d2afb6cf37248edb3e1316bceb7f108cb58bf8b
MD5 hash: 33a9a794ddebb3b7df4590f9d1cc8367
humanhash: fifteen-leopard-video-thirteen
File name:LIST OBJEDNÁVKY.pdf.exe
Download: download sample
Signature Formbook
File size:875'008 bytes
First seen:2021-11-08 11:25:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:rjEdc8ih5BhvnYjp5wylGoALLFr+GJVH:rAdxAPFaG
Threatray 7'134 similar samples on MalwareBazaar
TLSH T1D8154C127AD48C05C37A06714D5B912CDAA8AD67653EC218BE9E33BB2F77711062723F
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 517671 Sample: LIST OBJEDN#U00c1VKY.pdf.exe Startdate: 08/11/2021 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 14 other signatures 2->52 10 LIST OBJEDN#U00c1VKY.pdf.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\...\opTiLCtoLrqSTC.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp76C4.tmp, XML 10->40 dropped 58 Writes to foreign memory regions 10->58 60 Allocates memory in foreign processes 10->60 62 Adds a directory exclusion to Windows Defender 10->62 64 Injects a PE file into a foreign processes 10->64 14 RegSvcs.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 72 Modifies the context of a thread in another process (thread injection) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Sample uses process hollowing technique 14->76 78 2 other signatures 14->78 21 explorer.exe 14->21 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 dnsIp9 42 www.cckghs.com 209.151.194.236, 49807, 80 SD-DATA-CENTERUS United States 21->42 44 www.heathy.xyz 3.234.55.179, 49809, 80 AMAZON-AESUS United States 21->44 54 System process connects to network (likely due to code injection or exploit) 21->54 56 Performs DNS queries to domains with low reputation 21->56 29 chkdsk.exe 21->29         started        32 autochk.exe 21->32         started        signatures10 process11 signatures12 66 Modifies the context of a thread in another process (thread injection) 29->66 68 Maps a DLL or memory area into another process 29->68 70 Tries to detect virtualization through RDTSC time measurements 29->70 34 cmd.exe 1 29->34         started        process13 process14 36 conhost.exe 34->36         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2021-11-08 11:26:07 UTC
AV detection:
16 of 27 (59.26%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:dv9n rat spyware stealer trojan
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
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.elianedefalco.com/dv9n/
Unpacked files
SH256 hash:
91247d29e38c5d0736f69467ea73ab3b5c5af447002f4fec5aef94fa0910ea49
MD5 hash:
aff6bd42cdae47f707eb7f7d7963cbb7
SHA1 hash:
9a760d8c0bd93904227152211c9ce9418cd79858
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
SH256 hash:
2fec678b20418c8f5800ad1fc408960e951e826ed30f175b4e277ad90f6d223d
MD5 hash:
8027e449d6f6baeeb89bd7e276b67529
SHA1 hash:
6c1caed248dddb6f660c9ef06fc4afe467aa8aff
SH256 hash:
78e7401ff95f4267f226bd32e633f6000dcd202d3611717508b1d7752ea21c55
MD5 hash:
33a9a794ddebb3b7df4590f9d1cc8367
SHA1 hash:
1d2afb6cf37248edb3e1316bceb7f108cb58bf8b
Malware family:
FormBook
Verdict:
Malicious
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: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.

Malspam

Formbook

Executable exe 78e7401ff95f4267f226bd32e633f6000dcd202d3611717508b1d7752ea21c55

(this sample)

  
Delivery method
Distributed via e-mail attachment

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