MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de7f668796887083e919016efd9ffb59a48ed9edb1c2ce335e74cef51370ac73. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash: de7f668796887083e919016efd9ffb59a48ed9edb1c2ce335e74cef51370ac73
SHA3-384 hash: b00b937248c583ff7c08f28aacc92575dcddd902f98e12f2cba5c64d1d41841ff7fef085547fd53f7e9d33f0fe957bcb
SHA1 hash: 619eb07c5dc58164b0a0e0c529b0e2b74ba52b2e
MD5 hash: 8de84db055139693842f7dfbd3c6b147
humanhash: pasta-hotel-mockingbird-pasta
File name:Reliable Purchas.exe
Download: download sample
Signature Formbook
File size:859'648 bytes
First seen:2022-04-05 06:42:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:X9JIwzMUTXA6Ldg2ZVciHcY0PAJGrErnEpTGlNLqoPpyZf47dWZ1q:NJISNVii8GqErEpvcpyFCs1
Threatray 14'541 similar samples on MalwareBazaar
TLSH T11205AE0DFABACA12E1584777C0E65C1407B1AE21E956EB0F7AC136A519233EF8C4764F
File icon (PE):PE icon
dhash icon 7cf6b6aa8ed0e8b4 (18 x Formbook, 3 x SnakeKeylogger, 2 x NanoCore)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe greyware obfuscated packed remote.exe replace.exe
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
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Self deletion via cmd delete
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 603098 Sample: Reliable Purchas.exe Startdate: 05/04/2022 Architecture: WINDOWS Score: 100 34 www.rooplaza.com 2->34 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 9 other signatures 2->44 11 Reliable Purchas.exe 3 2->11         started        signatures3 process4 file5 28 C:\Users\user\...\Reliable Purchas.exe.log, ASCII 11->28 dropped 14 Reliable Purchas.exe 11->14         started        process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 shops.myshopify.com 23.227.38.74, 49825, 80 CLOUDFLARENETUS Canada 17->30 32 www.antiwardrobe.com 17->32 36 System process connects to network (likely due to code injection or exploit) 17->36 21 wscript.exe 17->21         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-05 06:43:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
33
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:d1n3 rat spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Blocklisted process makes network request
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
de7f668796887083e919016efd9ffb59a48ed9edb1c2ce335e74cef51370ac73
MD5 hash:
8de84db055139693842f7dfbd3c6b147
SHA1 hash:
619eb07c5dc58164b0a0e0c529b0e2b74ba52b2e
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: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 de7f668796887083e919016efd9ffb59a48ed9edb1c2ce335e74cef51370ac73

(this sample)

  
Delivery method
Distributed via e-mail attachment

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