MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59093a397a33c5e55dea803f4f514c104e55e703b1d9ac102969217d9be6ae5c. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 59093a397a33c5e55dea803f4f514c104e55e703b1d9ac102969217d9be6ae5c
SHA3-384 hash: c8d4f96781f8d607027d9bcd14d9bbef6e278e1877cad3f23eb1b6587bf342d0d880d783c6d4fdcadfa834dc183aec51
SHA1 hash: e427d14bcf6b83299dc7dfa32c5ee14fc947e908
MD5 hash: 18eba57662f1eed021dbbc75f6af3893
humanhash: edward-florida-comet-moon
File name:Cotizar.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:472'891 bytes
First seen:2023-01-19 13:59:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 12288:HYV/UPKINYWRuqRlXltcCdna2vidATdnUEHYuZ:HYZ+NtNRl1E2viiTZUidZ
Threatray 18'744 similar samples on MalwareBazaar
TLSH T1B6A4015886A4D06BC9B202F2CA1DE7F4A6F82E4CF005A763D7E17D773E72601894D2C6
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 88e9a8a8a8a9e8c8 (1 x Formbook)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Cotizar.exe
Verdict:
Malicious activity
Analysis date:
2023-01-19 14:01:02 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/a443e97c-d867-43e6-b95d-b62ea2e2fff3

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/354548/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Injector.6276.18053.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Searching for the window
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/61465/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63c94ce581817f6f4dc4b06a/reports/25917ecd-5c27-4780-b622-d842383e303f/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/f9aef729-cd44-4c96-91f8-ca44d763e883
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1154704
Signature
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 787433 Sample: Cotizar.exe Startdate: 19/01/2023 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 2 other signatures 2->41 9 Cotizar.exe 19 2->9         started        process3 file4 27 C:\Users\user\AppData\Local\...\eketedku.exe, PE32 9->27 dropped 12 eketedku.exe 1 9->12         started        process5 signatures6 53 Detected unpacking (changes PE section rights) 12->53 55 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->55 57 Maps a DLL or memory area into another process 12->57 59 Contains functionality to detect sleep reduction / modifications 12->59 15 eketedku.exe 12->15         started        18 conhost.exe 12->18         started        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 Queues an APC in another process (thread injection) 15->67 20 explorer.exe 2 6 15->20 injected process9 dnsIp10 29 assamcareerhub.com 119.18.54.156, 49716, 49717, 49718 PUBLIC-DOMAIN-REGISTRYUS India 20->29 31 www.portmart.online 199.192.31.98, 49710, 49711, 49712 NAMECHEAP-NETUS United States 20->31 33 11 other IPs or domains 20->33 43 System process connects to network (likely due to code injection or exploit) 20->43 24 cmmon32.exe 13 20->24         started        signatures11 process12 signatures13 45 Tries to steal Mail credentials (via file / registry access) 24->45 47 Tries to harvest and steal browser information (history, passwords, etc) 24->47 49 Modifies the context of a thread in another process (thread injection) 24->49 51 Maps a DLL or memory area into another process 24->51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/59093a397a33c5e55dea803f4f514c104e55e703b1d9ac102969217d9be6ae5c/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-01-19 13:43:31 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=leetuol2gpc6kxpkqa7u6ukmcbhflzydwhm2yebjneqx3g7gvzoa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
123e747239c973af2c8b7dc8a33b26fdc3cb05f2be8af864290f823daae7d764
Formbook
22471245b769519d4b63089e4fe8d3f2c098572cfd715ca85b581f087344b519
Formbook
28429a50cb6514e59372fad970cad50842fe49e66fc4c07039c69828c0d9949c
Formbook
3a83557cf45393e6008e0a885f79cb7f904f31d8cde2d42c227c1ce41e28b832
Formbook
3fc3939a2fc6d4c3fca7f8a09523c19052dde1cc175d80d03cd9f54e3543111b
Formbook
7ae47693c2140e42e5a9ef4a8bea41417ac6090e8bf2d8cd8f8e14ad02a3d275
Formbook
bfc9cf8ef1369ba05191e708fea5b6c71d653dee922f15a53a7aed0642e1b756
Formbook
cef638f9ba310dfd22719a682dfe6ad1a07c06b122b54127e2a6257e9acc7752
Formbook
+ 18'734 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230119-ra1kxagb57/
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
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Executes dropped EXE
Unpacked files
SH256 hash:
86ff17abe4aa2f277162580251c35dddbf05d9d1196f5514a76bd4244514affd
MD5 hash:
d64365cda6c7deec6cad59370dca9510
SHA1 hash:
7d690c0f179bcd4c52b64bfe4333a77eb507f66c
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/75be4ccb-f06c-4e4c-be25-526f7c75ea9a/
Parent samples :
cef638f9ba310dfd22719a682dfe6ad1a07c06b122b54127e2a6257e9acc7752
3a83557cf45393e6008e0a885f79cb7f904f31d8cde2d42c227c1ce41e28b832
59093a397a33c5e55dea803f4f514c104e55e703b1d9ac102969217d9be6ae5c
4669b95ca73b3835e391016b48633970c1d25f4394bf4046b7eabaab725ad0d9
52659c067eae50044c3989655f17e58a6391c62a23bfb90de95574b119c72b80
3e924b372c019c41e9995a276ce5c1b1487d14ceb9fbc8d606a09a83df5989b8
d45e44065de0cb4b8d6580579480ada6c2bf13c7e10775f606ca7197f6d762e9
b84878e7bdf4123a1c96713885956003153ed5a09570d168ea4f73f9ead64ff6
SH256 hash:
a4e9c7187aac8a30b3e3218c8134a6989d3868cba805e648e82625cfdc050b65
MD5 hash:
f43705625790b837beccd1b0f50eabdc
SHA1 hash:
816728c8b18043c84653ccc91c019900aa67a373
Link:
https://www.unpac.me/results/75be4ccb-f06c-4e4c-be25-526f7c75ea9a/
SH256 hash:
68a2379f91abf46add0ee7caa57cf2a0fae898eee33ef4ad2645bd64ac223bd5
MD5 hash:
7333d8f64382a8daf0ed961644c02237
SHA1 hash:
70a58089da116a77364ec13eb46db0d3dbd8405c
Link:
https://www.unpac.me/results/75be4ccb-f06c-4e4c-be25-526f7c75ea9a/
SH256 hash:
59093a397a33c5e55dea803f4f514c104e55e703b1d9ac102969217d9be6ae5c
MD5 hash:
18eba57662f1eed021dbbc75f6af3893
SHA1 hash:
e427d14bcf6b83299dc7dfa32c5ee14fc947e908
Link:
https://www.unpac.me/results/75be4ccb-f06c-4e4c-be25-526f7c75ea9a/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/59093a397a33/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/59093a397a33c5e55dea803f4f514c104e55e703b1d9ac102969217d9be6ae5c

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
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

gz 8af4a5695d4c31bb612b98cc148da904a42d332eae1a73ba43530cbcda9778f7

Formbook

Executable exe 59093a397a33c5e55dea803f4f514c104e55e703b1d9ac102969217d9be6ae5c

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 8af4a5695d4c31bb612b98cc148da904a42d332eae1a73ba43530cbcda9778f7
Cape
Cape
https://www.capesandbox.com/analysis/354548/
  
Dropped by
MD5 69cc5f55ac49b433a484a6d612d6b436

Comments