MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b. 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: 13


Intelligence 13 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b
SHA3-384 hash: 3a8b631ddac7fc7e950d8e0c793f5214565ac6b6593ab13d2ec2c699c8835bae964d466152d894275972acb81b988f83
SHA1 hash: afbb85420642666887abec1867d900790d935f20
MD5 hash: 96ba5a8085d7fd05cc963a214ee97bb6
humanhash: timing-cola-pluto-pasta
File name:DHL Receipt_#893915078.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:647'168 bytes
First seen:2023-11-21 12:41:41 UTC
Last seen:2023-11-21 14:19:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:PrsvknVLrHV4vBSnv6xF0qeCz5v9iXooPjVPjWO9+NrJNTyvfSnOUij:PrsvknVLMGixmqrzmXoSRl8rX22i
TLSH T18CD4236C2294B77FCAC827F654002861C5F56EB664B1D3AA466E35CC1E1730B4C86BFB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon b269ccaab2dc69b2 (3 x AgentTesla, 2 x Formbook, 1 x AsyncRAT)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
331
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/459511/
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.710.13542.21525.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/655ca59a07bbbb2951e8300b/reports/e258f138-2d5d-4dc2-9cf6-4726e5c870bf/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/23e12dea-4055-48cf-ae74-b3cf6a964978
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1345780
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses powercfg.exe to modify the power settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-21 02:57:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=n47ztb37q4leascu23n3wd2hzjuyx6codfuk6o4e46lytzsqbvvq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231121-pxbh7afb5v/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
e31c5ed0b6725c7bfb7391468c657ef94cbd0bade5ca63210d95dcb7b4eb86ab
MD5 hash:
75a885eabd0c224a4a32b0065cfb9e40
SHA1 hash:
069b9a8f47d3117e2a022d6341de59e41b261860
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
Parent samples :
be9fa4bd2766fc5e1d06a60c8e9fffcdb6d0c7cded097234b573abf97a19cc41
3f0f2b7e3062679b5ba9559637eee1d3ab15dea790fbf3c85b69fcccb3edc8bf
360937271a1d61e89c3be7d77f79c686292a3feff0a4b1f53d1999b51c0037fa
4cffb3c085e77791f93929f5fa18408829750807f7da6ee431a33904d2d1d4d7
6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b
f93c293e7d9910b50de02d8eb89c0655232a4c13c7a117d9532548f679fc849d
SH256 hash:
148ea9b6e2892095df8d817fe46042d97096dc867967ef65fc8ff378af04ab53
MD5 hash:
f76f8c86699bfd21218a714c5837a5dd
SHA1 hash:
37e817fe1134c0416ecc604acfb0a6641d89178f
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
925be82d9f5049f7175f7b50d6d2098140a1127f2779b16ac0d336e8c4afbdfc
MD5 hash:
9507b276b52790d05f40000fe6d634e3
SHA1 hash:
cf3e8ad16a84072fb4097ce3ed0e664fb6fe0d7f
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
1df390b99353a944770ab9b735204af772c6030e962080f04e773b70a97a3541
MD5 hash:
450254fca8a2be19642134bd255414c3
SHA1 hash:
32650cbd0b3cb578d6ba11c404526f8307b33b1f
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
b7e3b6202bf0a7cd47571eb63713db3520d82331bff704312dd502b97ba63994
MD5 hash:
1752bc2eb313ee83ae5334ca245c7305
SHA1 hash:
f9486aa5735bdd44662bdcac2bb7ddeb75fcb712
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
7319ad7118f9c19be21267ca65b7382b5a5171530d394c0f33eebffef2362223
MD5 hash:
9530c17cad910c897e698bb2e17fc780
SHA1 hash:
d7c4dad3a02296c51dd6e41b0b9de7f910b37c90
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
b82754d8be4a01892d6872a887c62e41e064fc392e5123bc6f5a198e503e00c8
MD5 hash:
377419ef08db8090b2f0144bccf73f2e
SHA1 hash:
4f070946e8bcecc87d77e182b2041e9c5213b1a4
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
4bd5475891061f635b78f8ccfad31a32c19705a90c87b8e8116f00aac5b15806
MD5 hash:
fd3de796cc3bab6c5f33bb568df731c4
SHA1 hash:
4b2888a91573c36a6ae33f68cd4ce99087571638
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
43dd526f7d3ce691c0e0174205c13874c8a8993de96dcd00da20d2bf6e56bd25
MD5 hash:
f748942a1e2ce8d95d66d5821d52f11c
SHA1 hash:
11b301230be05a260422f6f713cbc762fd71778d
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
a6e74e12e39df0071958d993d6508e660c871956122501c96149a29ee3e41c04
MD5 hash:
acea3f18077cc55a8b30162bc7081c61
SHA1 hash:
0b759b9d0bfd221ab4336ab517032eb103b50f54
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
SH256 hash:
6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b
MD5 hash:
96ba5a8085d7fd05cc963a214ee97bb6
SHA1 hash:
afbb85420642666887abec1867d900790d935f20
Link:
https://www.unpac.me/results/9c4e788b-79fb-41a9-9b95-fce54cefceb3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/6f3f99877f8716404854d6dbbb0f47ca698bf84e1968af3b84e79789e6500d6b

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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_w0
Create hunting rule
Author:@malgamy12

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/459511/

Comments