MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91eb471360ca2026ba5ab198bcee13a722cc72afa083c5e9ee63cace5eccb6a7. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
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SHA256 hash: 91eb471360ca2026ba5ab198bcee13a722cc72afa083c5e9ee63cace5eccb6a7
SHA3-384 hash: 331c9ccba7ab08eeb29ea9b7b2ba078af95e13a857e2796650aaf31763ceecbf39eb7d7fd1fd6b139096f53b627cc345
SHA1 hash: 112308e59c045576e6a12edb52a31123837e7ac4
MD5 hash: 65453728c2236132ebd05f03f9a65d55
humanhash: mango-dakota-eighteen-artist
File name:C23CJ107 C23BT18 和 C23CRU98.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:347'121 bytes
First seen:2022-11-25 18:01:31 UTC
Last seen:2022-11-25 19:47:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ab6770b0a8635b9d92a5838920cfe770 (84 x Formbook, 30 x AgentTesla, 15 x Loki)
ssdeep 6144:QBn1PrY7buTbBl8q2BhSbn29GMbe76ymCfcL8UUKv4:gPrqbABl3eo2bpZ38UUv
Threatray 20'598 similar samples on MalwareBazaar
TLSH T1C77413273490416BF740493E9E75A34393F7E2191B702D8B43AB1EB2DF229C7E8565E2
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
444
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
C23CJ107 C23BT18 和 C23CRU98.exe
Verdict:
No threats detected
Analysis date:
2022-11-25 18:05:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/53730bd3-985c-4302-a073-86614e1cd184

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/338557/
Detection(s):
SecuriteInfo.com.Variant.Jaik.77520.15297.2235.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6381031b559d07a06f4775c6/reports/3bd71c5d-7003-495e-986b-1e519755310c/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/09c87488-52de-4cfb-93c9-2df2d2ff3233
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1121305
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
Multi AV Scanner detection for domain / URL
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 signatures2 2 Behavior Graph ID: 754020 Sample: C23CJ107 C23BT18 #U548c C23... Startdate: 25/11/2022 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic 2->35 37 Multi AV Scanner detection for domain / URL 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 5 other signatures 2->41 9 C23CJ107 C23BT18 #U548c C23CRU98.exe 19 2->9         started        process3 file4 27 C:\Users\user\AppData\Local\Temp\vdbaiq.exe, PE32 9->27 dropped 12 vdbaiq.exe 1 9->12         started        process5 signatures6 53 Multi AV Scanner detection for dropped file 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 15 vdbaiq.exe 12->15         started        18 conhost.exe 12->18         started        process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 20 explorer.exe 3 15->20 injected process9 dnsIp10 29 eatingdisorderstest.site 64.190.62.22, 49728, 80 NBS11696US United States 20->29 31 www.wadish.info 162.0.228.17, 49731, 49732, 49733 NAMECHEAP-NETUS Canada 20->31 33 4 other IPs or domains 20->33 43 System process connects to network (likely due to code injection or exploit) 20->43 24 cscript.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/91eb471360ca2026ba5ab198bcee13a722cc72afa083c5e9ee63cace5eccb6a7/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-11-25 01:21:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
26 of 41 (63.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=shvuoe3aziqcnos2wgmlz3qtu4rmy4vpucb4l2pompfm4xwmw2tq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3f00dc9a046489c35c6dbcfcf2d91dfe03f7f700574be6a87fa623381727f92a
Formbook
6140005553a006e1fc0f489312d1ba70c84851f9e9a503daaf9665c72c1684bc
Formbook
b4e919a8dd061ad70552ed8e27679edda38c754a1bf6b9672ced36b1e2f3e028
Formbook
d6ed44f8974685e43802fae6ce9a8aed3e2bdcf8c8bb71b9d5922025f07647e6
Formbook
e7af05d6e7ec4ea68d42fdcd19bbfabb3c3e7dd2609582d87d5a9f5b387ac792
Formbook
fc5e3a0a5ffb1c7fff8495b83f05f7e4930862fbd142d3f6a530900a8d468361
Formbook
+ 20'588 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/221125-wmfhqade92/
Behaviour
Enumerates physical storage devices
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c3b76871-a92a-437f-913c-ada78d69f9e1
Unpacked files
SH256 hash:
bbc5a60f9140e40979a13d24e8fae142bff9140af94fe95cc1455160781aafbb
MD5 hash:
f13d54398929634fd143ef5ea8c6a3e3
SHA1 hash:
2c9224e7a169098f9c05f869746e84fb7f6fd928
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/c89fb6b1-15a5-4463-8329-6e9874f94043/
Parent samples :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 hash:
fc1e9c9d0524f405aab192c521a553a1483ae0de315d3277a69402fdade05491
MD5 hash:
b2a5b0e0e70eb909712785ad6fd3d296
SHA1 hash:
cd4a580c6152738ecf553db9ec4fdc8673156f80
Link:
https://www.unpac.me/results/c89fb6b1-15a5-4463-8329-6e9874f94043/
SH256 hash:
b0d8c12f9261249946efc05616f5125836335799a082d95082f2badd5e3f2669
MD5 hash:
15b4dbb00f1f51941001886f70849bb9
SHA1 hash:
bd2dfd85c9de3026153d1edb84cb5b510dbb9908
Link:
https://www.unpac.me/results/c89fb6b1-15a5-4463-8329-6e9874f94043/
SH256 hash:
91eb471360ca2026ba5ab198bcee13a722cc72afa083c5e9ee63cace5eccb6a7
MD5 hash:
65453728c2236132ebd05f03f9a65d55
SHA1 hash:
112308e59c045576e6a12edb52a31123837e7ac4
Link:
https://www.unpac.me/results/c89fb6b1-15a5-4463-8329-6e9874f94043/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91eb471360ca/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/91eb471360ca2026ba5ab198bcee13a722cc72afa083c5e9ee63cace5eccb6a7

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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.

Cape
Cape
https://www.capesandbox.com/analysis/338557/

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