MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f3d522c2e8fb5fa25bee03bdd61f8b957935e4209849358d41f49c39fe82ddc. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5f3d522c2e8fb5fa25bee03bdd61f8b957935e4209849358d41f49c39fe82ddc
SHA3-384 hash: dfaa44124de90db60f34e3979edf23bae5222c8905c887a267b9f2ac14929d94b30363785c2c3f88a950f228630d9e16
SHA1 hash: ab592ed0edb886b9fb1cd2e8b90ef59b3f8d3d93
MD5 hash: 9fc5136c71809ca5116aa57f4ffc2f41
humanhash: west-rugby-north-sink
File name:DOC2022092856789098765560890.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:475'120 bytes
First seen:2022-09-28 10:58:57 UTC
Last seen:2022-10-04 08:45:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'660 x Formbook, 12'250 x SnakeKeylogger)
ssdeep 6144:YbVNADxpXBOX/zDQbJlEwqgvw3kV1IPZIOPnjhda+:eNAvxOX/mJlzV1nOPnFd
Threatray 364 similar samples on MalwareBazaar
TLSH T133A40674A1B16ACDE896CEB29E64E909FFE71D519A42820FE03535F6423B7C5C6040FE
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 10808a8c8c8a8010 (77 x Formbook, 51 x AgentTesla, 44 x RemcosRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
318
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/314321/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.24232.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/633428fb49c58ce767c3ef57/reports/69eceb7a-7efe-4ce4-8685-4c4eb51221d6/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/f5d08e0d-d6ab-4ff0-aab6-0f2697077452
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1079150
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 711707 Sample: DOC2022092856789098765560890.exe Startdate: 28/09/2022 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus detection for URL or domain 2->36 38 4 other signatures 2->38 8 DOC2022092856789098765560890.exe 1 2->8         started        process3 file4 22 C:\...\DOC2022092856789098765560890.exe.log, CSV 8->22 dropped 48 Writes to foreign memory regions 8->48 50 Allocates memory in foreign processes 8->50 52 Injects a PE file into a foreign processes 8->52 12 RegSvcs.exe 8->12         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 12->54 56 Maps a DLL or memory area into another process 12->56 58 Sample uses process hollowing technique 12->58 60 Queues an APC in another process (thread injection) 12->60 15 explorer.exe 12->15 injected process8 dnsIp9 24 www.gogojackmin.com 199.192.31.144, 49736, 49737, 49738 NAMECHEAP-NETUS United States 15->24 26 sadaffstone.com 148.251.50.30, 49731, 80 HETZNER-ASDE Germany 15->26 28 5 other IPs or domains 15->28 30 System process connects to network (likely due to code injection or exploit) 15->30 19 colorcpl.exe 13 15->19         started        signatures10 process11 signatures12 40 Tries to steal Mail credentials (via file / registry access) 19->40 42 Tries to harvest and steal browser information (history, passwords, etc) 19->42 44 Modifies the context of a thread in another process (thread injection) 19->44 46 Maps a DLL or memory area into another process 19->46
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5f3d522c2e8fb5fa25bee03bdd61f8b957935e4209849358d41f49c39fe82ddc/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-09-28 10:59:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
16 of 26 (61.54%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l46velbor627ujn64a552ypyxflzgxscbgcjgwgud5e4hh7ifxoa._file
Verdict:
malicious
Similar samples:
089e22b0800e63398322f535240d8043b8d7e4a561245718ed5bf88fbb22e799
Formbook
27cb5cb27c8f29f4fcc7728b02a5a6f0f94f84ec1d17ab9284bfdb2e6b42ba98
Formbook
364f5cfc6c99c0b408090af7528505844b1b33853c5ea7930420d8f11b4ca011
Formbook
3c3bee00c300584717e1c307e690d05ab1c6c98428d83ca0d4285fe24a9e1015
Formbook
4a7ff610e707aec96fd17933cd54dbe672829c85ea4fdad33d37a9e421b500a8
Formbook
4a9a2a77700ec22944b66a398f0642e59bfdf0a64d83aae774eeabf8ccc03c78
Formbook
8776ab0754e874c4850f80bd4b455ee1f55c3be6e44d307edfd3b1efa58d257b
Formbook
c22d25107e48962b162c935a712240c0a4486b38891855f0e53d5eb972406782
Formbook
dbeb99d2b3f5ab13560c96f80ee6153f909f64aac45d4ad56e2468320430acd3
Formbook
dd7002a597142a426c7710e84485e6047450cbcb58e44cbbec73c20b0ee50771
Formbook
+ 354 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:c1no rat spyware stealer trojan
Link:
https://tria.ge/reports/220928-m3d56affe6/
Behaviour
Modifies Internet Explorer settings
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
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/456a0b85-a8a2-465b-a8e0-ff79f909aa90
Unpacked files
SH256 hash:
6fc6856309fd5f510b133b31e593a7f01f71516b5073381163752552a526821d
MD5 hash:
aa4f89fac6c79bc587eb2a295510ab5e
SHA1 hash:
55f83f9433f69472a1bcde089a322c33638f11fc
Link:
https://www.unpac.me/results/da7aab65-9ba6-4c19-b964-9afbb046c909/
SH256 hash:
7ab11222a55e30476fab0abe7bb437fa9f90602905d73afe1ef511d35f1441be
MD5 hash:
b4388f8316292b15003554fa52de2729
SHA1 hash:
79ed6916d7155f13e216c3550e7fc66b532551a9
Link:
https://www.unpac.me/results/da7aab65-9ba6-4c19-b964-9afbb046c909/
SH256 hash:
9d1e0209e5ee24f53a95089d0028efa51dcc767b79a3fa29f331a85107a85bc7
MD5 hash:
1bb2a3228e920dbe6df3383f006f830a
SHA1 hash:
45cab413c6454d92458dc9d13d1f04707980c993
Link:
https://www.unpac.me/results/da7aab65-9ba6-4c19-b964-9afbb046c909/
SH256 hash:
5f3d522c2e8fb5fa25bee03bdd61f8b957935e4209849358d41f49c39fe82ddc
MD5 hash:
9fc5136c71809ca5116aa57f4ffc2f41
SHA1 hash:
ab592ed0edb886b9fb1cd2e8b90ef59b3f8d3d93
Link:
https://www.unpac.me/results/da7aab65-9ba6-4c19-b964-9afbb046c909/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5f3d522c2e8f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/5f3d522c2e8fb5fa25bee03bdd61f8b957935e4209849358d41f49c39fe82ddc

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:BAZT_B5_NOCEXInvalidStream
Create hunting rule
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:NETDIC208_NOCEX_NOREACTOR
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 5f3d522c2e8fb5fa25bee03bdd61f8b957935e4209849358d41f49c39fe82ddc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/314321/

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