MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85c25c523bf8a24c2d4eda60e343729175635dfd590cb3e42732ecc27e55b0d3. 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 3 File information Comments
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SHA256 hash: 85c25c523bf8a24c2d4eda60e343729175635dfd590cb3e42732ecc27e55b0d3
SHA3-384 hash: eeddb44758a39a120e105f0b65e062b0fb95f96b7890d24cb9b8823cbda6a129be515322f972f570f520ca09f5552b3f
SHA1 hash: abb6afa6efa6ed711c24b89452ec46ebd07c2b17
MD5 hash: 9c40183bdbf463768131f9556e0203f5
humanhash: indigo-nevada-purple-kitten
File name:Folha de pedido de compra.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:347'136 bytes
First seen:2021-11-10 17:06:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 6144:dlf1HiRA9NkaJsNIuGWPK/9lqbrziFukmTgTAIHOP3DNy:dlfh/kaJKIusOmQkh0IHyN
Threatray 11'093 similar samples on MalwareBazaar
TLSH T10C74128063BC4BA5E5BF0BFA48B2B0E09BF5620F6892D3182DD575CF68457900752FA7
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Sha1ForNonSecretPurpos.exe
Verdict:
Malicious activity
Analysis date:
2021-11-10 17:39:17 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/d0cb2e02-7117-4eba-ac80-6c7fa9039034

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/204840/
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/618bfc38175442ca93aaf09f/reports/eb074d7f-54f6-496c-8f58-5e47121e8460/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/64e894b7-0041-49c2-8c45-93dc7137dab0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/886952
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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 dropped file
Multi AV Scanner detection for submitted file
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 519424 Sample: Folha de pedido de compra.pdf.exe Startdate: 10/11/2021 Architecture: WINDOWS Score: 100 45 www.shadurj.com 2->45 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 15 other signatures 2->63 11 Folha de pedido de compra.pdf.exe 7 2->11         started        signatures3 process4 file5 39 C:\Users\user\AppData\...\QlPgJHjmfnOjBF.exe, PE32 11->39 dropped 41 C:\Users\user\AppData\Local\...\tmp6914.tmp, XML 11->41 dropped 43 C:\...\Folha de pedido de compra.pdf.exe.log, ASCII 11->43 dropped 67 Writes to foreign memory regions 11->67 69 Adds a directory exclusion to Windows Defender 11->69 71 Injects a PE file into a foreign processes 11->71 15 RegSvcs.exe 11->15         started        18 RegSvcs.exe 11->18         started        20 powershell.exe 24 11->20         started        22 schtasks.exe 1 11->22         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Maps a DLL or memory area into another process 15->75 77 Sample uses process hollowing technique 15->77 79 Queues an APC in another process (thread injection) 15->79 24 explorer.exe 15->24 injected 81 Tries to detect virtualization through RDTSC time measurements 18->81 28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        process9 dnsIp10 47 whitefoxy.site 116.202.131.166, 49810, 80 HETZNER-ASDE Germany 24->47 49 www.whitefoxy.site 24->49 65 System process connects to network (likely due to code injection or exploit) 24->65 32 mstsc.exe 24->32         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 32->51 53 Maps a DLL or memory area into another process 32->53 55 Tries to detect virtualization through RDTSC time measurements 32->55 35 cmd.exe 1 32->35         started        process14 process15 37 conhost.exe 35->37         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/85c25c523bf8a24c2d4eda60e343729175635dfd590cb3e42732ecc27e55b0d3/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-11-10 17:07:05 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qxbfyur37creylko3jqogq3ssf2wgxp5leglhzbhglwme7svwdjq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1e83eab755128ae8f4bcdade071b08cc6fae1ad62ff9fe29aae62b3e30ea28bb
Formbook
45e8fd9c2d454cbd2012f8cb1a3799fd70a470e5e82485c0df4f8b330e0c8ac5
Formbook
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
7c0ab1d837684e8d37e75578f4821e25d7729cb9d3739f397cabbb9c95f2ddae
Formbook
7c7e7d1ad3f8afd0ffcba163bac7c1df9ceb8202a96a61b30b697569e00051b0
Formbook
b4585da149dee9da71100f73ac5088f6dcd2f0bad3a155a78615ab321fce3f71
Formbook
+ 11'083 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dv9n rat spyware stealer trojan
Link:
https://tria.ge/reports/211110-vmze6ahgf8/
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
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b75f8648-57b5-447d-99d7-da38538dd9cd/
Parent samples :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 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/b75f8648-57b5-447d-99d7-da38538dd9cd/
SH256 hash:
240db16d4dd3caf1ae3f0928fb85cebee28d9457cc1aa7ccfd496923b8e0643a
MD5 hash:
2cf17574f04da9a71a1bf336d261a2e5
SHA1 hash:
2c23a1332bde6d7c5327d8b9999faa66e2f00bc1
Link:
https://www.unpac.me/results/b75f8648-57b5-447d-99d7-da38538dd9cd/
SH256 hash:
85c25c523bf8a24c2d4eda60e343729175635dfd590cb3e42732ecc27e55b0d3
MD5 hash:
9c40183bdbf463768131f9556e0203f5
SHA1 hash:
abb6afa6efa6ed711c24b89452ec46ebd07c2b17
Link:
https://www.unpac.me/results/b75f8648-57b5-447d-99d7-da38538dd9cd/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/85c25c523bf8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/85c25c523bf8a24c2d4eda60e343729175635dfd590cb3e42732ecc27e55b0d3

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
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 85c25c523bf8a24c2d4eda60e343729175635dfd590cb3e42732ecc27e55b0d3

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/204840/

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