MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2fe9760a9c5fb15b569a9003d41211e35871e52e8ac829a587ddb3e48a52a8bc. 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 3 File information Comments
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SHA256 hash: 2fe9760a9c5fb15b569a9003d41211e35871e52e8ac829a587ddb3e48a52a8bc
SHA3-384 hash: 4cd36725170414630519673623987f18b634b790243c4a15c1ee17b23ca1fe2fd791ec7d3d37b54a20bd43391f2042e3
SHA1 hash: 72ccc0363478c9949e7cee726ed4e733138a5e1e
MD5 hash: a260cece98fd48c716cd50fceb1e9870
humanhash: moon-johnny-connecticut-september
File name:AWN#INVOICE2021119.PDF.exe
Download: download sample
Signature Formbook
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File size:380'416 bytes
First seen:2021-11-09 03:49:57 UTC
Last seen:2021-11-09 06:16:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:wKiCFUwReMKMSOyubC2ILtucgWv545W+l86MWc0ApMIRXEE1:q7wRePXORbC2kucgA54rkx1
TLSH T16484127B92B9493BDCBA067F7872B941027862CB9D43EFBD834441E63D27361A045FA1
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
122
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/204341/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.18950.23604.31065.UNOFFICIAL
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Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6189efee175442ca93a88442/reports/474fbda3-8afa-476f-bb23-d5bcec61364a/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/745d20cd-ad96-4f71-ab6d-43b5b447136c
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/885709
Signature
.NET source code contains potential unpacker
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
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
Sigma detected: Suspicious Double Extension
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 518178 Sample: AWN#INVOICE2021119.PDF.exe Startdate: 09/11/2021 Architecture: WINDOWS Score: 100 36 Multi AV Scanner detection for domain / URL 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 11 other signatures 2->42 10 AWN#INVOICE2021119.PDF.exe 3 2->10         started        process3 file4 28 C:\Users\...\AWN#INVOICE2021119.PDF.exe.log, ASCII 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 14 AWN#INVOICE2021119.PDF.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 digital-dre.com 50.87.146.201, 49780, 80 UNIFIEDLAYER-AS-1US United States 17->30 32 www.illusiontrick.com 172.105.157.192, 49779, 80 LINODE-APLinodeLLCUS United States 17->32 34 3 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cmstp.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       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/2fe9760a9c5fb15b569a9003d41211e35871e52e8ac829a587ddb3e48a52a8bc/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-11-09 03:50:07 UTC
AV detection:
9 of 45 (20.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f7uxmcu4l6yvwvu2sab5ieqr4nmhdzjorlectjmh3wz6jcssvc6a._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:gr1c rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211109-edyt9sbehn/
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.illusiontrick.com/gr1c/
Unpacked files
SH256 hash:
69c4bb6e6d3a50682f5bed090fc0d85e2f316760dcb33616a5b4da0a085bc4bf
MD5 hash:
e0f4e3bb8f985bf035f08b4c716f8a42
SHA1 hash:
d90ca36998b24d6af4727bf69ff4062446f8c53f
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/5a6a73b5-b208-458c-b3b4-ae506d7e2bb4/
Parent samples :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 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/5a6a73b5-b208-458c-b3b4-ae506d7e2bb4/
SH256 hash:
2fc6fa8c11b6e179670cd6c7e8030de8b16fa5f3f3b4fc684cf3f2cf36b45dc8
MD5 hash:
0beabda8b4f3e633ea598261af0690b0
SHA1 hash:
15d38cf0572cf749cd585dd67d23f92bca4601f7
Link:
https://www.unpac.me/results/5a6a73b5-b208-458c-b3b4-ae506d7e2bb4/
SH256 hash:
2fe9760a9c5fb15b569a9003d41211e35871e52e8ac829a587ddb3e48a52a8bc
MD5 hash:
a260cece98fd48c716cd50fceb1e9870
SHA1 hash:
72ccc0363478c9949e7cee726ed4e733138a5e1e
Link:
https://www.unpac.me/results/5a6a73b5-b208-458c-b3b4-ae506d7e2bb4/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/2fe9760a9c5f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/2fe9760a9c5fb15b569a9003d41211e35871e52e8ac829a587ddb3e48a52a8bc

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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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 2fe9760a9c5fb15b569a9003d41211e35871e52e8ac829a587ddb3e48a52a8bc

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/204341/

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