MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fa318879db358e490dc763417711d144a17bd5ad8061821a1e820521ebefac16. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
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SHA256 hash: fa318879db358e490dc763417711d144a17bd5ad8061821a1e820521ebefac16
SHA3-384 hash: b2f34c7b4eecbbd03ec26a8c8b0081a3fc197050974f1a79cdce8c7fa65686a9b01ea4139615ca39bbf2bff3ebb343e8
SHA1 hash: 4bb3569060b5839ef5c37202f88b43e80ed7117e
MD5 hash: 3c0220f11e23f131f741177135ee776b
humanhash: beer-bulldog-tennessee-apart
File name:Payment against document.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:702'464 bytes
First seen:2022-05-26 05:27:48 UTC
Last seen:2022-05-26 06:37:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:zQIGZFF0UD4/pSY0vWMAuzL1vKB0nmGPaxC8JryS1A5xnnhQ84MkGlHDjn:ENY0vWMASZO0nmGFmrVqTnnhQLijz
TLSH T17FE4016AF750BEE5F53943FE203218253F618A26D97ED61D646532934C722C3908BECB
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 :
293
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Payment against document.exe
Verdict:
Malicious activity
Analysis date:
2022-05-26 05:28:32 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/a09172c4-7098-41d0-bc13-33559d782000

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/274656/
Detection(s):
SecuriteInfo.com.Variant.Lazy.188710.7171.31644.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expand.exe fareit obfuscated packed wacatac
Link:
https://www.filescan.io/uploads/628f0fec054dcf0ecaf01754/reports/f7a3235a-10e6-404c-8bf2-18c2fa3fc5f5/overview
Result
Verdict:
MALICIOUS
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/546bcfd1-51ae-4269-8ad9-16d3389339f5
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1001962
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Self deletion via cmd delete
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 ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 634458 Sample: Payment against document.exe Startdate: 26/05/2022 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 10 other signatures 2->41 10 Payment against document.exe 3 2->10         started        process3 file4 29 C:\Users\...\Payment against document.exe.log, ASCII 10->29 dropped 13 Payment against document.exe 10->13         started        16 Payment against document.exe 10->16         started        process5 signatures6 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 Queues an APC in another process (thread injection) 13->61 18 explorer.exe 13->18 injected process7 dnsIp8 31 www.zhuyunming.com 18->31 33 www.taojinwa.net 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 45 Uses ipconfig to lookup or modify the Windows network settings 18->45 22 ipconfig.exe 18->22         started        signatures9 process10 signatures11 47 Self deletion via cmd delete 22->47 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process12 process13 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fa318879db358e490dc763417711d144a17bd5ad8061821a1e820521ebefac16/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-25 13:53:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7iyyq6o3gwhesdohmnaxoeorisqxxvnnqbqyegq6qicsd27pvqla._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:amdf rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220526-f5z23sceep/
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:
f44e4c73d593278c11ac37c4166f7a85493ed0b8b41ad06d0c696839b659bca6
MD5 hash:
592614a0b186e4050c6630875c9f318a
SHA1 hash:
b562e180e2d3cdc6c7baaff7a818aee0fe6e1a6d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d8b6d137-853e-4c59-9234-6e64aa1142d3/
Parent samples :
ff4e7b32b4c4ac0f5fbdd12b9c2ffd894fe647d1d22fe009035cc307a540322d
edc8375d2a96c96eb0d3b8c7acfba4a9ba7f602deb4a2738d4ff07f0ee129e98
f083cca9a8f0665f33ea6d3a133e5e8fcfc8fc2e4828ddcbd8c035344e7c5667
fbcdf1532a2095924283e9d60f013d107036cdebce2772bfaf41b429931fdf58
fa318879db358e490dc763417711d144a17bd5ad8061821a1e820521ebefac16
b1b671842ea0b17a67e78741ceb401ccee0907e55c7a365aa78bf17aebe8e356
363c3288efc15bdba3db28988766e6554fca04e6bcb49e094f7a521388016fe8
SH256 hash:
302646e8f197270c53f230bacfb57bab848a6f02a625d352d6c8fe421e7e17d4
MD5 hash:
3ce79b9f42b2fc7ba3da33c016842acb
SHA1 hash:
d10f2c016286c1a68616cf298a16a3d256798dad
Link:
https://www.unpac.me/results/d8b6d137-853e-4c59-9234-6e64aa1142d3/
SH256 hash:
c720d8d87e5744ef459c160ae3ae85984519c5cee89d4acd3d4156f929ebcca2
MD5 hash:
86f922d84e1b89f646bc23cb3d878a9c
SHA1 hash:
b61f4401c1a144d704988cf4e55dd9a71f8d8263
Link:
https://www.unpac.me/results/d8b6d137-853e-4c59-9234-6e64aa1142d3/
SH256 hash:
e4c2fd50c2a34afcc6537326b4d03ef8d08cdd63715058a352ae838e4057be2d
MD5 hash:
1edefc346c7dc4698c3edbd24106165f
SHA1 hash:
9265cbc65ce3a05f0dff7e17630295dd1f174a40
Link:
https://www.unpac.me/results/d8b6d137-853e-4c59-9234-6e64aa1142d3/
SH256 hash:
22a30e5537df0856f0ee317f6dd7317982fa601368272ab71b1a7649b53b7ca6
MD5 hash:
0a78e9682dd8c587b20bb03a6a5ceb04
SHA1 hash:
4106393a8c0135c5a814541ce194dc6dcf7d0c60
Link:
https://www.unpac.me/results/d8b6d137-853e-4c59-9234-6e64aa1142d3/
SH256 hash:
fa318879db358e490dc763417711d144a17bd5ad8061821a1e820521ebefac16
MD5 hash:
3c0220f11e23f131f741177135ee776b
SHA1 hash:
4bb3569060b5839ef5c37202f88b43e80ed7117e
Link:
https://www.unpac.me/results/d8b6d137-853e-4c59-9234-6e64aa1142d3/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fa318879db35/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/fa318879db358e490dc763417711d144a17bd5ad8061821a1e820521ebefac16

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
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 fa318879db358e490dc763417711d144a17bd5ad8061821a1e820521ebefac16

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/274656/

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