MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dd2338c1c8e798e8428bbd62513e3ca5aafb8d238a01e67e32330c7e383f2c1f. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dd2338c1c8e798e8428bbd62513e3ca5aafb8d238a01e67e32330c7e383f2c1f
SHA3-384 hash: 64c415f53412be8dd8e35d1ee948162452df6c62dcb05ce0c940180935075e93568ca5e7762d367c77c09f323495aca5
SHA1 hash: 5c7c02592bfae2711c7f82647e426e06a8bc453d
MD5 hash: 7d89ba5fdb75f333becfd437de73f6d4
humanhash: hamper-timing-vermont-five
File name:IMG_5391.EXE
Download: download sample
Signature Formbook
Create hunting rule
File size:1'008'952 bytes
First seen:2021-01-22 06:24:18 UTC
Last seen:2021-02-11 21:17:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'471 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:df50jwcEc6teYM2YsDZwdbz1LzDmV0uuQWyxQWk/L:dB08cEc6teADAbRfvo4/L
Threatray 261 similar samples on MalwareBazaar
TLSH BD259F9172D9C8E7E4AE15B359AF683022D657EEA090C20F25573B3295E3393209FD4F
Reporter cocaman
Tags:exe FormBook

Code Signing Certificate

Organisation:Discord Inc.
Issuer:DigiCert EV Code Signing CA
Algorithm:sha256WithRSAEncryption
Valid from:Mar 14 00:00:00 2018 GMT
Valid to:Feb 18 12:00:00 2021 GMT
Serial number: 04F131322CC31D92C849FCA351D2F141
Intelligence: 17 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 584035E0344227FC32C92A7F3FD4D88594A26C2E953360543D613329E99122DD
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
41
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IMG_5391.EXE
Verdict:
Malicious activity
Analysis date:
2021-01-22 06:27:48 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/adf0ebf0-3470-406d-9d0d-b34722a76564

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/114577/
Detection(s):
PUA.Win.Trojan.Generic-6629274-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Running batch commands
Launching a process
Creating a file in the %temp% directory
Creating a file in the %AppData% directory
Sending a UDP request
Creating a process from a recently created file
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/587996
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 343025 Sample: IMG_5391.EXE Startdate: 22/01/2021 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 7 other signatures 2->64 11 IMG_5391.EXE 5 2->11         started        15 nsou.exe 1 2->15         started        17 nsou.exe 2->17         started        process3 file4 42 C:\Users\user\AppData\Roaming\nsou.exe, PE32 11->42 dropped 44 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 11->44 dropped 46 C:\Users\user\...\nsou.exe:Zone.Identifier, ASCII 11->46 dropped 48 C:\Users\user\AppData\...\IMG_5391.EXE.log, ASCII 11->48 dropped 88 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->88 19 nsou.exe 2 11->19         started        22 cmd.exe 1 11->22         started        90 Multi AV Scanner detection for dropped file 15->90 92 Machine Learning detection for dropped file 15->92 signatures5 process6 signatures7 66 Writes to foreign memory regions 19->66 68 Allocates memory in foreign processes 19->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->70 72 Injects a PE file into a foreign processes 19->72 24 AddInProcess32.exe 19->24         started        27 conhost.exe 22->27         started        29 reg.exe 1 1 22->29         started        process8 signatures9 80 Modifies the context of a thread in another process (thread injection) 24->80 82 Maps a DLL or memory area into another process 24->82 84 Sample uses process hollowing technique 24->84 86 2 other signatures 24->86 31 explorer.exe 24->31 injected process10 dnsIp11 50 shakahats.com 34.102.136.180, 49751, 49752, 80 GOOGLEUS United States 31->50 52 everydaycollars.com 107.180.41.246, 49753, 80 AS-26496-GO-DADDY-COM-LLCUS United States 31->52 54 5 other IPs or domains 31->54 56 System process connects to network (likely due to code injection or exploit) 31->56 35 ipconfig.exe 31->35         started        signatures12 process13 signatures14 74 Modifies the context of a thread in another process (thread injection) 35->74 76 Maps a DLL or memory area into another process 35->76 78 Tries to detect virtualization through RDTSC time measurements 35->78 38 cmd.exe 1 35->38         started        process15 process16 40 conhost.exe 38->40         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dd2338c1c8e798e8428bbd62513e3ca5aafb8d238a01e67e32330c7e383f2c1f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-22 06:25:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
17 of 46 (36.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3urtrqoi46moqqulxvrfcpr4uwvpxdjdria6m7rsgmgh4ob7fqpq._file
Verdict:
unknown
Similar samples:
43bdef53f8ff0d262c2086a46c66d76f8c5e2b9df085959c70a5a3c679474767
Formbook
761e77be2bbf6089f04b1901c44548bd4ff5ac873a74b1ca0e0604bb902eff22
Formbook
77d1e1c8c87b166c88ab728ff9830a8c7c2da67ce68a5348846fdfa1be8183b3
Formbook
8b066067df73a77d2b21f65084a3d87868e11d4ae2ba3e039a7aa819b6245964
Formbook
a3106e981a3c90e2512b5f67afdb8e8430fa3bc75cc11eab5541a7200ecd0fba
Formbook
a9ba86161cb89de53aed44c5bc25ffd09dc5c8091f87e52618a3ef009d381c46
Formbook
b22aed0458247b059e32aa4ffd4fcaf3ba7c097432fcbcbea9db7482899addbf
Formbook
b303d3f820da914a39a9a859de14c201515377f31f6631c7e0384dbe44fca53c
Formbook
f9a8ba23f68d57179f1a480b6207351d5f41e6303fbdd09f6fffd514f82bef30
Formbook
fbc1e4ec22cd7339eb5fbc8d64320bb825f411e3c6ade350705586bfab4e1808
Formbook
+ 251 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook persistence ransomware rat spyware stealer trojan
Link:
https://tria.ge/reports/210122-71lkgyfm8j/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.unitedfootballcamps.com/bf3/
Unpacked files
SH256 hash:
108d3fa3409a45ceeb1ee0309ea6c6369e9fd2f08daf3225eb5fe9f76af0972e
MD5 hash:
e0688ccabc0c88ebf3bde75ae545fdf4
SHA1 hash:
7b695314193062db288e505950834f35b3ff3336
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/41b38e97-4db2-4e8a-b394-9599fc2aeee3/
Parent samples :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 hash:
1ffac68def5ce68f650ac8229d3a40e9ac1fc89adeddc9a6041c3dcebb6d1933
MD5 hash:
8503258c9fb8f1519204a2f9a4ccd873
SHA1 hash:
63a62f152f2fe8d79aa29eb3133ba180b03ed416
Link:
https://www.unpac.me/results/41b38e97-4db2-4e8a-b394-9599fc2aeee3/
SH256 hash:
c06d4e3d0205d9bdd4a4b40b8da710d698b3a5d73a1626c9ca058c10b2c6d00c
MD5 hash:
7f67414b3fd29299f2d29ad7c2afb995
SHA1 hash:
2ec40d57c08c47433a6d044d271d74005dddae8d
Link:
https://www.unpac.me/results/41b38e97-4db2-4e8a-b394-9599fc2aeee3/
SH256 hash:
a60900adc31e8e28ff541b91a55de5d9719c0d1ddc3022eb6f6fb5ac19cc9e4f
MD5 hash:
831fb0609b3509b4fb31ac662ac69217
SHA1 hash:
985c33fa2b01e305995e2ea166b961b01f0f6335
Link:
https://www.unpac.me/results/41b38e97-4db2-4e8a-b394-9599fc2aeee3/
SH256 hash:
4f81e273da20c5b9835ce6ca57cc061d77764f9e3927bdb1505cb791bf50b046
MD5 hash:
29e19b5dce96140a8b90152b16bd44af
SHA1 hash:
4f3dc6eb876bb58f53966980a9c451a04ec17d8a
Link:
https://www.unpac.me/results/41b38e97-4db2-4e8a-b394-9599fc2aeee3/
SH256 hash:
dd2338c1c8e798e8428bbd62513e3ca5aafb8d238a01e67e32330c7e383f2c1f
MD5 hash:
7d89ba5fdb75f333becfd437de73f6d4
SHA1 hash:
5c7c02592bfae2711c7f82647e426e06a8bc453d
Link:
https://www.unpac.me/results/41b38e97-4db2-4e8a-b394-9599fc2aeee3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/dd2338c1c8e798e8428bbd62513e3ca5aafb8d238a01e67e32330c7e383f2c1f

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

Formbook

img d69f5d1f622805208c4b7b2d834993e7fe8a79441a21e352a88440ec4c5bc7d2

Formbook

Executable exe dd2338c1c8e798e8428bbd62513e3ca5aafb8d238a01e67e32330c7e383f2c1f

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 d69f5d1f622805208c4b7b2d834993e7fe8a79441a21e352a88440ec4c5bc7d2
Cape
Cape
https://www.capesandbox.com/analysis/114577/

Comments