MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 36fab6d728571d3da4184d3335a8263dd47f1bfa573ca762360958eb11c4c874. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
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SHA256 hash: 36fab6d728571d3da4184d3335a8263dd47f1bfa573ca762360958eb11c4c874
SHA3-384 hash: 31f125449570c5cfbe5eb3aebbf3efc5a5f50bb810b02435d1913b93eaf5cd82cf75d53fc5f80e209ba2811c1c7e7156
SHA1 hash: ea9171e1ac865d12613d89ff7ee996d7e697f50a
MD5 hash: cb7b3e73b0f2137a8fdd380f0099c6ff
humanhash: west-fillet-two-uncle
File name:INQUIRY DOCUMENTS & PHOTO.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:238'080 bytes
First seen:2022-03-22 06:22:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'476 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:KoWb05y1i+cIZQ80OE9cxzB2FI5EAblfv2KL8QR69u5RjPwj2bIDh8:KoWb05Ci+cIWY5BYZGlWsqJ2
Threatray 14'565 similar samples on MalwareBazaar
TLSH T1CF3408607E0524C7E68F88F2398E41A6DA51B938F351AC0F62D0BD2DC56B6F04E5E5EC
File icon (PE):PE icon
dhash icon b2bec096ac968682 (15 x AgentTesla, 5 x Formbook, 3 x AveMariaRAT)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
261
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/254013/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62396b480cd58dbd92d46c8a/reports/a2716d7d-f1ee-432e-9ec0-0b853532653c/overview
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/64551323-6963-4ece-ae7b-c67dd9d42d6a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/961429
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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 ping.exe to check the status of other devices and networks
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 593910 Sample: INQUIRY DOCUMENTS & PHOTO.exe Startdate: 22/03/2022 Architecture: WINDOWS Score: 100 40 www.region10group.gmbh 2->40 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 15 other signatures 2->60 10 INQUIRY DOCUMENTS & PHOTO.exe 15 4 2->10         started        signatures3 process4 dnsIp5 50 cdn.discordapp.com 162.159.130.233, 443, 49746 CLOUDFLARENETUS United States 10->50 52 192.168.2.1 unknown unknown 10->52 38 C:\...\INQUIRY DOCUMENTS & PHOTO.exe.log, ASCII 10->38 dropped 72 Injects a PE file into a foreign processes 10->72 15 INQUIRY DOCUMENTS & PHOTO.exe 10->15         started        18 cmd.exe 1 10->18         started        20 INQUIRY DOCUMENTS & PHOTO.exe 10->20         started        file6 signatures7 process8 signatures9 74 Modifies the context of a thread in another process (thread injection) 15->74 76 Maps a DLL or memory area into another process 15->76 78 Sample uses process hollowing technique 15->78 80 Queues an APC in another process (thread injection) 15->80 22 rundll32.exe 15->22         started        25 explorer.exe 15->25 injected 82 Uses ping.exe to check the status of other devices and networks 18->82 28 PING.EXE 1 18->28         started        30 conhost.exe 18->30         started        32 timeout.exe 1 18->32         started        process10 dnsIp11 62 Self deletion via cmd delete 22->62 64 Modifies the context of a thread in another process (thread injection) 22->64 66 Maps a DLL or memory area into another process 22->66 68 Tries to detect virtualization through RDTSC time measurements 22->68 34 cmd.exe 1 22->34         started        42 mamaroneckprinting.com 15.197.142.173, 49845, 80 TANDEMUS United States 25->42 44 www.ouzishop.com 141.125.107.247, 49846, 80 SOFTLAYERUS United States 25->44 48 7 other IPs or domains 25->48 70 System process connects to network (likely due to code injection or exploit) 25->70 46 google.com 172.217.168.14 GOOGLEUS United States 28->46 signatures12 process13 process14 36 conhost.exe 34->36         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/36fab6d728571d3da4184d3335a8263dd47f1bfa573ca762360958eb11c4c874/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-22 06:23:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g35lnvzik4ot3jayjuztlkbghxkh6g72k46koyrwbfmoweoezb2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2d40f472fa610ec9068b1bb4d057ca2293e2389fe7915acd2237b6df85e9b6b3
Formbook
2f769789848c3e7e7492ad889d72f0087633418aa8368fcbfa63bf2dc31bfd1a
Formbook
4e11667f1b10d3afa5f8bc073581224342f0753bbd9cf6a3cc5e470e89e0c4e5
Formbook
5f58441e657a0972d0ba3b2f0377a4547016990b7195fa6259537945580a0ebb
Formbook
67db5982545c91192a7c4fcaa3cbe5324de3e69faa1af275b05926d80eda889d
Formbook
909570efc48341a6ae00ae8dcbb8d751f912569a4756f7526bc7d0cf1cda81ed
Formbook
92e4964a6f237d0ac0e881fbdb1ed93a46e78cead4894fbd9667a00a80b96da7
Formbook
e9f3be0c409dfce073fc55ea97594b0ff18f7953e1793cb7aa8a7c0f87549ebb
Formbook
+ 14'555 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:gaou rat spyware stealer trojan
Link:
https://tria.ge/reports/220322-g5f5mseee3/
Behaviour
Delays execution with timeout.exe
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
36fab6d728571d3da4184d3335a8263dd47f1bfa573ca762360958eb11c4c874
MD5 hash:
cb7b3e73b0f2137a8fdd380f0099c6ff
SHA1 hash:
ea9171e1ac865d12613d89ff7ee996d7e697f50a
Link:
https://www.unpac.me/results/edaa3a64-2ca0-4cf2-a1f3-7d082486e1c3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/36fab6d728571d3da4184d3335a8263dd47f1bfa573ca762360958eb11c4c874

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

Formbook

Executable exe 36fab6d728571d3da4184d3335a8263dd47f1bfa573ca762360958eb11c4c874

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/254013/

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