MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4669b95ca73b3835e391016b48633970c1d25f4394bf4046b7eabaab725ad0d9. 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
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SHA256 hash: 4669b95ca73b3835e391016b48633970c1d25f4394bf4046b7eabaab725ad0d9
SHA3-384 hash: 806365f180951bd1d8a3eb0153de1ff702b2b1b2c76829cebe7d25a08e372c7625258e1c39316d34c099ce269f69f22a
SHA1 hash: 07d8968dcb4d69b71272167f47a48bfdc11c314f
MD5 hash: a9dfdb1ad35d551e2cdd8ceec013c9f4
humanhash: hawaii-lion-carpet-july
File name:Cotizar.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:444'309 bytes
First seen:2023-01-20 08:46:07 UTC
Last seen:2023-01-20 10:34:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 12288:0YBScr0bsO9nVUu6ZSOb3bnuFQJPhTkdWkVg:0YBSchEn2u6x/n3ZkdW0g
TLSH T1F894CF40F90EC1D2C9659B304D3C8965A7153D5BADB08A1EB6C5BFFE2B72F617C09A02
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 0864f032f5d4f068 (1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
183
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Cotizar.exe
Verdict:
Malicious activity
Analysis date:
2023-01-20 08:48:00 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/f06e613d-51f7-4e15-82eb-679fe63b99f0

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/354869/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.15914.8714.28137.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Searching for synchronization primitives
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
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/61697/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63ca5507447edb203affe9cf/reports/2f96796d-e68a-497f-aadf-db6b2cfe240f/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/025cfb9d-b775-4ee0-8011-cd119e91ea25
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1155388
Signature
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
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 dropped file
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 dnsIp2 2 Behavior Graph ID: 788120 Sample: Cotizar.exe Startdate: 20/01/2023 Architecture: WINDOWS Score: 100 30 www.helladisewear.com 2->30 32 td-ccm-168-233.wixdns.net 2->32 34 gcdn0.wixdns.net 2->34 50 Snort IDS alert for network traffic 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 2 other signatures 2->56 10 Cotizar.exe 19 2->10         started        signatures3 process4 file5 28 C:\Users\user\AppData\Local\...\fwhxeaj.exe, PE32 10->28 dropped 13 fwhxeaj.exe 1 10->13         started        process6 signatures7 68 Multi AV Scanner detection for dropped file 13->68 70 Detected unpacking (changes PE section rights) 13->70 72 Maps a DLL or memory area into another process 13->72 74 Contains functionality to detect sleep reduction / modifications 13->74 16 fwhxeaj.exe 13->16         started        19 conhost.exe 13->19         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 16->42 44 Maps a DLL or memory area into another process 16->44 46 Sample uses process hollowing technique 16->46 48 Queues an APC in another process (thread injection) 16->48 21 explorer.exe 3 12 16->21 injected process10 dnsIp11 36 assamcareerhub.com 119.18.54.156, 49776, 49781, 49786 PUBLIC-DOMAIN-REGISTRYUS India 21->36 38 www.portmart.online 199.192.31.98, 49748, 49758, 49772 NAMECHEAP-NETUS United States 21->38 40 9 other IPs or domains 21->40 58 System process connects to network (likely due to code injection or exploit) 21->58 25 wlanext.exe 13 21->25         started        signatures12 process13 signatures14 60 Tries to steal Mail credentials (via file / registry access) 25->60 62 Tries to harvest and steal browser information (history, passwords, etc) 25->62 64 Modifies the context of a thread in another process (thread injection) 25->64 66 Maps a DLL or memory area into another process 25->66
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4669b95ca73b3835e391016b48633970c1d25f4394bf4046b7eabaab725ad0d9/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2023-01-20 08:49:30 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=izu3sxfhhm4dly4rafvuqyzzoda5ex2dss7uarvx5k5kw4s22dmq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230120-kpvvmsfc6x/
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
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/3c89a25f-0819-4f76-aab8-bab6a722a913/
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/3c89a25f-0819-4f76-aab8-bab6a722a913/
SH256 hash:
ae34f8185838d7abcb6d1d903af2314fb26798918411916c4eef2b2c09f6d41d
MD5 hash:
719c1b1c3018747fe34ed72c2147b42a
SHA1 hash:
e28b2dd0ce162f3101f2d2a9384690562b810ac6
Link:
https://www.unpac.me/results/3c89a25f-0819-4f76-aab8-bab6a722a913/
SH256 hash:
4669b95ca73b3835e391016b48633970c1d25f4394bf4046b7eabaab725ad0d9
MD5 hash:
a9dfdb1ad35d551e2cdd8ceec013c9f4
SHA1 hash:
07d8968dcb4d69b71272167f47a48bfdc11c314f
Link:
https://www.unpac.me/results/3c89a25f-0819-4f76-aab8-bab6a722a913/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4669b95ca73b/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/4669b95ca73b3835e391016b48633970c1d25f4394bf4046b7eabaab725ad0d9

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

Executable exe 4669b95ca73b3835e391016b48633970c1d25f4394bf4046b7eabaab725ad0d9

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/354869/

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