MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a779376d06a79b1b6c3ab2e2b241adf8b39db02e8180829a8f7071847f42b56. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0a779376d06a79b1b6c3ab2e2b241adf8b39db02e8180829a8f7071847f42b56
SHA3-384 hash: e536263fdc5fcf61c71f48dadbb842ec262beb7b44971d043eb02e6249fe15c8ff6e455053ea27579955f82cea311799
SHA1 hash: f9c2953280646715ec9ad0d034a6eae43d1fc8c4
MD5 hash: 4470f83cba058890c43ded4a3940c3dc
humanhash: vegan-edward-robert-missouri
File name:4470f83cba058890c43ded4a3940c3dc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:947'200 bytes
First seen:2022-04-28 07:00:27 UTC
Last seen:2022-04-28 07:42:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 12288:RA5ULhdIiOIF60fBen9+RFUxzOp6/S5qZRIWtmyQyTf4+l4DMIj5z5IN:xddIiOIF6026MS8ZRICmSw+cMA6
Threatray 15'203 similar samples on MalwareBazaar
TLSH T17C156B133A4E79E1DA79B372D7D81904733E93A29E62430C1D1F36F65AA71121D8FB0A
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/267452/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.3531.7256.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Adding an access-denied ACE
Launching a process
Сreating synchronization primitives
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/626a3bb319beefe126fc2659/reports/12a9ca97-0af5-4a38-bf79-555f345dc486/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0646cfe7-414f-4b48-9556-c0882b298929
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/984609
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Contains functionality to hide user accounts
Found malware configuration
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
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 617104 Sample: clWBvSVRZN.exe Startdate: 28/04/2022 Architecture: WINDOWS Score: 100 31 skindeepapp.com 2->31 33 mes-dents-blanches.com 2->33 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 9 other signatures 2->47 11 clWBvSVRZN.exe 1 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\clWBvSVRZN.exe.log, ASCII 11->29 dropped 57 Writes to foreign memory regions 11->57 59 Allocates memory in foreign processes 11->59 61 Injects a PE file into a foreign processes 11->61 15 dtdump.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 2 other signatures 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 mes-dents-blanches.com 18->35 37 mes-dents-blanches.com 145.239.208.100, 80 OVHFR France 18->37 39 chengkayouxuan.com 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 control.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0a779376d06a79b1b6c3ab2e2b241adf8b39db02e8180829a8f7071847f42b56/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-28 07:01:12 UTC
File Type:
PE (.Net Exe)
AV detection:
17 of 25 (68.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bj3zg5wqnj43dnwdvmxcwja236fttwyc5amaqkni64drqr7ufnla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
21791c7eba15ff44e84b44080fa6c85cf824afafd5d987ce18d445dc942c34a2
Formbook
292873ea2c0ffc631756b284a6967acb95ade373f1f4e2411640befa952474b4
Formbook
42c22b1ceff07541d20717e8b9fea63a1418dc92917303cdcf48cce246a7d29f
Formbook
a8d57222d66a26a6ef7fe2d8eeb11a8af7ea9693afcbb31eece3519379c07784
Formbook
b85b6101f5f24710f8c9d5a32a4fa4194c55d1088c8722b08653aac9e6a3007a
Formbook
db08b46bd14292939578b689a36e94813eb9e0d25b980bc5c05a804882c5221a
Formbook
f4fe32bba1b311259ec25cc0bb98c46f741ff0ad2592f6a05fe8d7096dbcd630
Formbook
+ 15'193 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:arh2 loader rat suricata
Link:
https://tria.ge/reports/220428-hs782abce9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f7ee1aa6233cd9dee5ce64b25f818d57b6d953ab3a7d1542ae8f1882b548338b
MD5 hash:
e9ce0f6ebd05e037276d50b2c7a67337
SHA1 hash:
97534ff1442f3e5464e88f2a29594a68b77f8922
Link:
https://www.unpac.me/results/032a5c1f-06e5-45c3-8b0e-c87a581f4a17/
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
Link:
https://www.unpac.me/results/032a5c1f-06e5-45c3-8b0e-c87a581f4a17/
SH256 hash:
0a779376d06a79b1b6c3ab2e2b241adf8b39db02e8180829a8f7071847f42b56
MD5 hash:
4470f83cba058890c43ded4a3940c3dc
SHA1 hash:
f9c2953280646715ec9ad0d034a6eae43d1fc8c4
Link:
https://www.unpac.me/results/032a5c1f-06e5-45c3-8b0e-c87a581f4a17/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0a779376d06a/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/0a779376d06a79b1b6c3ab2e2b241adf8b39db02e8180829a8f7071847f42b56

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

Formbook

Executable exe 0a779376d06a79b1b6c3ab2e2b241adf8b39db02e8180829a8f7071847f42b56

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2166976/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/267452/

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