MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e555c2e46ef544275b0a6e1568bc51ec55bb875d6eb939f517d4d21fcf37449. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1e555c2e46ef544275b0a6e1568bc51ec55bb875d6eb939f517d4d21fcf37449
SHA3-384 hash: 7c2d925031dd49e5afbb0662f40b65b887dcf300ad91daa4787262732c250cf876e09a898be0296525bd376240b1df1c
SHA1 hash: abd09e3f0ada6c30e5bfea31b37d07ac91d8cf4f
MD5 hash: 00417e64ec534e08ffda1a911252c781
humanhash: massachusetts-mars-illinois-king
File name:SecuriteInfo.com.Variant.Barys.281.25619.21217
Download: download sample
Signature Formbook
Create hunting rule
File size:475'648 bytes
First seen:2022-07-22 12:40:59 UTC
Last seen:2022-07-22 16:57:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:NMh4DtvdmgKuswT6jF+A2RIw46Y6AblJzMEpIs8oGjND:2CDtv4g1swrAy466TB6Hx
TLSH T101A41280DE8E4799F63ACA7DF7175B4227D32C016F27EEEA14140FC5496B6E0210BE99
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)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
377
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Variant.Barys.281.25619.21217
Verdict:
Malicious activity
Analysis date:
2022-07-22 12:44:23 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/a21f5d97-98c6-4ae8-ae87-1cd7e88e2478

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/293412/
Detection(s):
SecuriteInfo.com.Variant.Barys.281.25619.21217.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Sending a custom TCP request
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
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/62da9b597b83f958a96c2870/reports/20826017-6645-4ee0-98ba-d9cbb1fa2f06/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/7061a4b9-a3d7-456f-a353-cbcae36893dd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1039244
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 671738 Sample: SecuriteInfo.com.Variant.Ba... Startdate: 22/07/2022 Architecture: WINDOWS Score: 100 31 www.realityjunkie.net 2->31 33 realityjunkie.net 2->33 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 45 7 other signatures 2->45 11 SecuriteInfo.com.Variant.Barys.281.25619.exe 3 2->11         started        signatures3 process4 file5 29 SecuriteInfo.com.V...s.281.25619.exe.log, ASCII 11->29 dropped 55 Writes to foreign memory regions 11->55 57 Allocates memory in foreign processes 11->57 59 Injects a PE file into a foreign processes 11->59 15 InstallUtil.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 2 other signatures 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.thelittlebeercompany.com 18->35 37 parkingpage.namecheap.com 198.54.117.210, 49784, 80 NAMECHEAP-NETUS United States 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 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        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1e555c2e46ef544275b0a6e1568bc51ec55bb875d6eb939f517d4d21fcf37449/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-07-22 10:10:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dzkvylsg55kee5nqu3qvnc6fd3cvxodv23vzhh2rpvgsd7htoreq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ja25 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220722-pwrh1sfddr/
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
Formbook payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
55388d0e17a21ab236f9e7a5024b8c1c772d76acb2680caf2c1d2fdf3336c9bd
MD5 hash:
2967f74af4436c36833a74dda3002929
SHA1 hash:
4a38d146ac7b18ffdc6ecb201c55d922e2220164
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/4787b473-f1a2-41b1-89d2-b1dbec9ee967/
SH256 hash:
a6acfe617040a5005be0d1675756dc9f09596d3bb2bb3ebc8a2c6881b8c4cfd7
MD5 hash:
db843358b89f4074346cab346720ab06
SHA1 hash:
94d77a5f2d66f20baf557ad30c3ab284665980d9
Link:
https://www.unpac.me/results/4787b473-f1a2-41b1-89d2-b1dbec9ee967/
SH256 hash:
4ac1b10f62c9dc86482430395f4d35731fae4859a74ed14e4b6c6fba3ba1e391
MD5 hash:
acdd4246c14bc55b75f0154b1c84bda0
SHA1 hash:
5baa8f93280520a0cc062293fef1ec6e7dbafe3c
Link:
https://www.unpac.me/results/4787b473-f1a2-41b1-89d2-b1dbec9ee967/
SH256 hash:
1e555c2e46ef544275b0a6e1568bc51ec55bb875d6eb939f517d4d21fcf37449
MD5 hash:
00417e64ec534e08ffda1a911252c781
SHA1 hash:
abd09e3f0ada6c30e5bfea31b37d07ac91d8cf4f
Link:
https://www.unpac.me/results/4787b473-f1a2-41b1-89d2-b1dbec9ee967/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1e555c2e46ef/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/1e555c2e46ef544275b0a6e1568bc51ec55bb875d6eb939f517d4d21fcf37449

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.

Cape
Cape
https://www.capesandbox.com/analysis/293412/

Comments