MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 788ea00a409b014057ab3e26da71161e4eacec9478e45a836cfca6eb34d6d152. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 788ea00a409b014057ab3e26da71161e4eacec9478e45a836cfca6eb34d6d152
SHA3-384 hash: 189558f25931196607f63a0a4724006db32f9bb4b1e6601ecc0f7782df51ae24a8a92bf1b42a90d9da2644c86176cedf
SHA1 hash: ed9a43733ea60aad90e6b1981fee30155951ec0f
MD5 hash: bbe9cda8d32c9d9e654aa42d384049e5
humanhash: single-five-three-romeo
File name:Purchase Order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:536'576 bytes
First seen:2022-06-24 08:27:16 UTC
Last seen:2022-06-24 09:57:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:SAOkPRxliW18/QjPjfcbkzDxnZBSgqwCmw+fn0f9N6wqL/GsKy3+A/5:SHkPRrhSDsnegqwP5f0lNRkKi+W
TLSH T1FCB4F0A5E3682F5AE08363F88CA9D1142B67B34E95ACC304BDFA75CBD4723D15492E07
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/282955/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b575d6924ee6692339ec40/reports/0f8a6508-740e-4b54-981f-8fe931ffe9bb/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/ead32194-bc29-4fc7-863a-0ecd67437285
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1019237
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in 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 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 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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 651733 Sample: Purchase Order.exe Startdate: 24/06/2022 Architecture: WINDOWS Score: 100 35 www.med-blank.com 2->35 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 10 other signatures 2->45 11 Purchase Order.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\...\Purchase Order.exe.log, ASCII 11->33 dropped 55 Injects a PE file into a foreign processes 11->55 15 Purchase Order.exe 11->15         started        18 Purchase Order.exe 11->18         started        20 Purchase Order.exe 11->20         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 22 explorer.exe 15->22 injected process9 dnsIp10 37 www.lm-saw.com 22->37 47 System process connects to network (likely due to code injection or exploit) 22->47 26 mstsc.exe 22->26         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 26->49 51 Maps a DLL or memory area into another process 26->51 53 Tries to detect virtualization through RDTSC time measurements 26->53 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/788ea00a409b014057ab3e26da71161e4eacec9478e45a836cfca6eb34d6d152/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-24 04:44:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
22 of 40 (55.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pchkacsatmauav5lhytnu4iwdzhkz3eupdsfva3m7stowngw2fja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ir93 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220624-kcz9ladha7/
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)
Unpacked files
SH256 hash:
021bff5b7497f63714d88ed6427f6cea7be0adddfbb70ae66ea080cc68be5b9f
MD5 hash:
5b7a6ab6df7c1f5150baf0fca6cd53f1
SHA1 hash:
d8db78fd1247abc3f6e75be029a07b0d4003c907
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/20426e0a-87da-416c-81ef-189066d1f3c5/
Parent samples :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 hash:
0cb6aef1fa57d11408e47ae071485ef8f48c2982997b8d74b47a4151d85b978c
MD5 hash:
843aa6edf83bff7b61c6a5369ef41e95
SHA1 hash:
d1bfeec8eaac9a1dacf2f7062ce964d8e7d77085
Link:
https://www.unpac.me/results/20426e0a-87da-416c-81ef-189066d1f3c5/
SH256 hash:
ab4ff8274aaa41f924abc70aee13df286021f0aba248d36d8e7bfec90a1f7ba7
MD5 hash:
214c82b44376a439a4aa8aa9df0a947c
SHA1 hash:
84976c30dd9a21b8736a8e4e3ba335b1cfd7d3a9
Link:
https://www.unpac.me/results/20426e0a-87da-416c-81ef-189066d1f3c5/
SH256 hash:
87577e6c69af07ba0e6383a2a152b59a39d6b336631ce4baa250bd9f8adce03d
MD5 hash:
9b17d560e68eff0da30f79b3c391c9a3
SHA1 hash:
5ceda263b1ea13401f652c709dd884d58945fe57
Link:
https://www.unpac.me/results/20426e0a-87da-416c-81ef-189066d1f3c5/
SH256 hash:
5908adcef9f2b96f5a0fa02ac0edf600c949fd86379db37673713696e0fd0781
MD5 hash:
c1417c5913658e0405946afa684f3e93
SHA1 hash:
016735f5a132974b8b2e74ed2a2ba5696abb67e0
Link:
https://www.unpac.me/results/20426e0a-87da-416c-81ef-189066d1f3c5/
SH256 hash:
788ea00a409b014057ab3e26da71161e4eacec9478e45a836cfca6eb34d6d152
MD5 hash:
bbe9cda8d32c9d9e654aa42d384049e5
SHA1 hash:
ed9a43733ea60aad90e6b1981fee30155951ec0f
Link:
https://www.unpac.me/results/20426e0a-87da-416c-81ef-189066d1f3c5/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/788ea00a409b/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/788ea00a409b014057ab3e26da71161e4eacec9478e45a836cfca6eb34d6d152

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 788ea00a409b014057ab3e26da71161e4eacec9478e45a836cfca6eb34d6d152

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/282955/

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