MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 373ddb58250751db49b54926cdd14ed7f99a46a8dbd4afca2626324439663f16. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 373ddb58250751db49b54926cdd14ed7f99a46a8dbd4afca2626324439663f16
SHA3-384 hash: ed60524a4de2d384162fb121279147dd476cec84fe8aea37bc066bc5809dff9b447a2bd86f4f8bd6b637eb4ff0d7c6ba
SHA1 hash: 33cdbfa6067bf67108724dcdeeb7014748ff0896
MD5 hash: c01519ccb12236a0977c1654ead8f14e
humanhash: carolina-black-uniform-ack
File name:373ddb58250751db49b54926cdd14ed7f99a46a8dbd4afca2626324439663f16
Download: download sample
Signature Formbook
Create hunting rule
File size:432'235 bytes
First seen:2023-01-05 13:08:09 UTC
Last seen:2023-01-05 14:30:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ab6770b0a8635b9d92a5838920cfe770 (84 x Formbook, 30 x AgentTesla, 15 x Loki)
ssdeep 6144:qBnmeG0xkz6C2U/2aqg9JBP/W9OGxEx82mThudVzCjmece9staSOdq9gmbn72:OGlaKpWcGOx2udQueAOIlC
TLSH T18494CF9170ACC1C7E56E0DB2AC9BE23420B479DDE1DA504F7289BB6A60F2392444F77D
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 8084a48cbc8ce4f8 (44 x Formbook, 20 x AveMariaRAT, 11 x SnakeKeylogger)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
173
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
373ddb58250751db49b54926cdd14ed7f99a46a8dbd4afca2626324439663f16
Verdict:
Malicious activity
Analysis date:
2023-01-05 13:08:20 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/8917247c-45ef-4533-b9ad-22b7320d0f64

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/349660/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.64067892.787.19146.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
DNS request
Launching a process
Searching for synchronization primitives
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook lokibot overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63b6cbee0e926711fd770bf0/reports/1647492f-df36-4c83-b5f4-9efbe4883b1e/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/60514f59-679d-408f-ac05-041035ecd0f1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1145642
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Machine Learning detection for dropped file
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
Performs DNS queries to domains with low reputation
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 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: 778374 Sample: l6O4RLjotH.exe Startdate: 05/01/2023 Architecture: WINDOWS Score: 100 53 Multi AV Scanner detection for domain / URL 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 59 4 other signatures 2->59 10 l6O4RLjotH.exe 19 2->10         started        process3 file4 35 C:\Users\user\AppData\Local\Temp\lmkqj.exe, PE32 10->35 dropped 13 lmkqj.exe 1 2 10->13         started        process5 file6 37 C:\Users\user\AppData\...\vgeyjkvexfnacj.exe, PE32 13->37 dropped 77 Multi AV Scanner detection for dropped file 13->77 79 Machine Learning detection for dropped file 13->79 81 Maps a DLL or memory area into another process 13->81 17 lmkqj.exe 13->17         started        signatures7 process8 signatures9 45 Modifies the context of a thread in another process (thread injection) 17->45 47 Maps a DLL or memory area into another process 17->47 49 Sample uses process hollowing technique 17->49 51 Queues an APC in another process (thread injection) 17->51 20 explorer.exe 17->20 injected process10 dnsIp11 39 gmrsnodes.com 192.185.90.105, 49707, 49708, 49709 UNIFIEDLAYER-AS-1US United States 20->39 41 www.lee-perez.com 216.40.34.41, 49713, 49714, 49715 TUCOWSCA Canada 20->41 43 5 other IPs or domains 20->43 61 System process connects to network (likely due to code injection or exploit) 20->61 63 Performs DNS queries to domains with low reputation 20->63 24 chkdsk.exe 13 20->24         started        27 vgeyjkvexfnacj.exe 20->27         started        29 vgeyjkvexfnacj.exe 20->29         started        signatures12 process13 signatures14 65 Tries to steal Mail credentials (via file / registry access) 24->65 67 Tries to harvest and steal browser information (history, passwords, etc) 24->67 69 Modifies the context of a thread in another process (thread injection) 24->69 71 Maps a DLL or memory area into another process 24->71 73 Multi AV Scanner detection for dropped file 27->73 75 Machine Learning detection for dropped file 27->75 31 WerFault.exe 4 10 27->31         started        33 WerFault.exe 10 29->33         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/373ddb58250751db49b54926cdd14ed7f99a46a8dbd4afca2626324439663f16/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-12-06 01:30:37 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g465wwbfa5i5wsnvjetm3uko274zurvi3pkk7srgeyzeiolgh4la._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:m9ae loader persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/230105-qdrxhaca57/
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
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook
Xloader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/975db535-a680-42da-9d57-039dca651062
Unpacked files
SH256 hash:
32f66d497de7473735587747e3b7fe938df2bac4493b3e04296dbdbd532222aa
MD5 hash:
dbd4a9b7a44cea194480fe216b2a16ff
SHA1 hash:
b9549b268e8262b5a52230ac8b081bb74ecceeb1
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/40a5f1e3-5da3-4b3b-82ca-08293ff59151/
Parent samples :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 hash:
259310cecdd3df585476270697f9cf5d05d15e8b7ac02beecdb5351e94d2de10
MD5 hash:
d2b6706d464a01fa5f97b1a865b29286
SHA1 hash:
a6051fc06df0e5e37b962ad35ce51fefabf14485
Link:
https://www.unpac.me/results/40a5f1e3-5da3-4b3b-82ca-08293ff59151/
SH256 hash:
60af5163fda45456f8d1e013932b7f1fb4dc008b052b2dabfe747ed0b6845f91
MD5 hash:
37c9b73565b20f58bdc6d5dd737d61a3
SHA1 hash:
c0888e25fd15cf927e36352bdf387c183d09211e
Link:
https://www.unpac.me/results/40a5f1e3-5da3-4b3b-82ca-08293ff59151/
SH256 hash:
373ddb58250751db49b54926cdd14ed7f99a46a8dbd4afca2626324439663f16
MD5 hash:
c01519ccb12236a0977c1654ead8f14e
SHA1 hash:
33cdbfa6067bf67108724dcdeeb7014748ff0896
Link:
https://www.unpac.me/results/40a5f1e3-5da3-4b3b-82ca-08293ff59151/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.58
Link:
https://yomi.yoroi.company/submissions/373ddb58250751db49b54926cdd14ed7f99a46a8dbd4afca2626324439663f16

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/349660/

Comments