MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 17c6d90478db4497b55db86e046514d9b8f9412e5abf63d0d52d4db71c848984. 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 4 File information Comments
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SHA256 hash: 17c6d90478db4497b55db86e046514d9b8f9412e5abf63d0d52d4db71c848984
SHA3-384 hash: 084703c27fe2521a7e85f14c6937af1a6173de1e01e2989864512841c8abaf39bfe26354a55c9e856a7fc288e1aaddb1
SHA1 hash: ffca207b0ba4697dcc091e5a372bf193c58de763
MD5 hash: 2909158d6ad87c77ceadc2469035af1f
humanhash: london-montana-leopard-nebraska
File name:PURCHASE ORDER 443726 pdf..exe
Download: download sample
Signature Formbook
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File size:1'084'416 bytes
First seen:2022-04-11 07:18:13 UTC
Last seen:2022-04-12 07:00:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'476 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:X7JMkJrxJ1UwBYXRC9wjZAafeugkVgNEU/Gl4lGZ0wr85i1fIIQj/7roRZ4lTir+:vxdBqCebfeuXVgOnZTgIW3HTlCg7+ns
TLSH T16635F1A15B669583F2F9263044AADAF132F132954237F3AD7C88C2757FD0284DA417EE
File icon (PE):PE icon
dhash icon 70ccb26969b2cc71 (35 x AgentTesla, 13 x Formbook, 2 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
4
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/262538/
Detection(s):
SecuriteInfo.com.Malware.AI.3775843069.15840.31123.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6253d6690d7cd5530a7fef57/reports/4fbcc97c-04cc-4b04-9e3b-ae5bcc488ce1/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3d75b182-9660-44b4-bcaa-355d0016a005
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/974302
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
Benign windows process drops PE files
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
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 606803 Sample: PURCHASE ORDER 443726 pdf..exe Startdate: 11/04/2022 Architecture: WINDOWS Score: 100 43 www.zj-fabric.com 2->43 45 www.jnkyjj.com 2->45 59 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 15 other signatures 2->65 10 PURCHASE ORDER 443726 pdf..exe 3 2->10         started        signatures3 process4 file5 35 C:\...\PURCHASE ORDER 443726 pdf..exe.log, ASCII 10->35 dropped 69 Injects a PE file into a foreign processes 10->69 14 PURCHASE ORDER 443726 pdf..exe 10->14         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 14->71 73 Maps a DLL or memory area into another process 14->73 75 Sample uses process hollowing technique 14->75 77 Queues an APC in another process (thread injection) 14->77 17 rundll32.exe 1 12 14->17         started        21 explorer.exe 5 14->21 injected process9 dnsIp10 47 System process connects to network (likely due to code injection or exploit) 17->47 49 Tries to steal Mail credentials (via file / registry access) 17->49 51 Self deletion via cmd delete 17->51 57 4 other signatures 17->57 24 cmd.exe 2 17->24         started        27 cmd.exe 1 17->27         started        37 desertbirdmercantile.com 162.241.24.116, 49781, 80 UNIFIEDLAYER-AS-1US United States 21->37 39 patrickwritescode.com 15.197.142.173, 49820, 49823, 80 TANDEMUS United States 21->39 41 27 other IPs or domains 21->41 33 C:\Users\user\AppData\Local\...\igfxez7x6.exe, PE32 21->33 dropped 53 Benign windows process drops PE files 21->53 55 Performs DNS queries to domains with low reputation 21->55 file11 signatures12 process13 signatures14 67 Tries to harvest and steal browser information (history, passwords, etc) 24->67 29 conhost.exe 24->29         started        31 conhost.exe 27->31         started        process15
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/17c6d90478db4497b55db86e046514d9b8f9412e5abf63d0d52d4db71c848984/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-04-11 07:19:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
80
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=c7dnsbdy3ncjpnk5xbxaiziu3g4psqjolk7whugvfvg3oheergca._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:u6fn loader rat
Link:
https://tria.ge/reports/220411-h5hh5seeb5/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Unpacked files
SH256 hash:
289098220f850558e0c4b552096cb9fbc6140ae918d6a625545b4a5b2ae6c141
MD5 hash:
5ac0f0f51b3dddb2089c99317a561bb1
SHA1 hash:
14d49ee91d276b3865de0080bbf9dc4797e5b975
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/e835cfa0-ce18-4297-a63b-3fdc77a0e899/
Parent samples :
3a3e12eabec6d3f196912bfeca3527aa7f965721489217d25b663af4a88cd25f
67e667585a2282864a0187dc3e91dce19e6de52194576a0abe57f139cb92eeb2
17c6d90478db4497b55db86e046514d9b8f9412e5abf63d0d52d4db71c848984
fbcf4ee29500a0213f0afb0877088e0dc85bfa74f95c80f9ad289bd2c816a93f
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/e835cfa0-ce18-4297-a63b-3fdc77a0e899/
SH256 hash:
c414e4b93f56d4a888abdff2b5fb73bfb3faf88d6793154c73e08270192524c0
MD5 hash:
420b20ec032850d6f5ddbfe260db16ba
SHA1 hash:
2a1c5081f5b7ec4e11cc3268e9ab9547a0450127
Link:
https://www.unpac.me/results/e835cfa0-ce18-4297-a63b-3fdc77a0e899/
SH256 hash:
17c6d90478db4497b55db86e046514d9b8f9412e5abf63d0d52d4db71c848984
MD5 hash:
2909158d6ad87c77ceadc2469035af1f
SHA1 hash:
ffca207b0ba4697dcc091e5a372bf193c58de763
Link:
https://www.unpac.me/results/e835cfa0-ce18-4297-a63b-3fdc77a0e899/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/17c6d90478db/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/17c6d90478db4497b55db86e046514d9b8f9412e5abf63d0d52d4db71c848984

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
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Rule name:quakbot_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:silentbuilder_halo_generated
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Author:Halogen Generated Rule, Corsin Camichel
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 17c6d90478db4497b55db86e046514d9b8f9412e5abf63d0d52d4db71c848984

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/262538/

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