MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d. 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: 12

Intelligence 12 IOCs YARA 4 File information Comments 1

SHA256 hash:	75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d
SHA3-384 hash:	8312cb9b468cad212e19859a5486229c8750626771d5411410ed04e4832896d7d8cb31cf164dc572061017e47b84015f
SHA1 hash:	433db2b2b7e4bd1103cf4aaa98a1498ce6bf48a3
MD5 hash:	8c83bcf93707223bc2510242032476c5
humanhash:	yankee-montana-lake-social
File name:	8c83bcf93707223bc2510242032476c5
Download:	download sample
Signature	Formbook Create hunting rule
File size:	654'256 bytes
First seen:	2022-04-21 08:51:53 UTC
Last seen:	2022-04-21 09:57:56 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:ZqiRxnR449Jk8boeVVWKUBmcFrw7HfIwRN71jdmESajnWjsFCk2fL:BoOD51jnSiST
Threatray	15'076 similar samples on MalwareBazaar
TLSH	T12BD4992A38BA100DB272AD5C6BBCB175911EF7F226365CBB0DF7054A11129F0CB9D627
TrID	72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.4% (.EXE) Win64 Executable (generic) (10523/12/4) 6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.4% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter	zbetcheckin
Tags:	32 exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

249

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

formbook

ID:

File name:

FW Ευγενική υπενθύμιση επιβεβαίωση της παραγγελίας_GR32265.zip

Verdict:

Malicious activity

Analysis date:

2022-04-21 10:04:27 UTC

Tags:

encrypted opendir exploit CVE-2017-11882 loader formbook trojan stealer

Link:

https://app.any.run/tasks/a1ee1a05-94e8-44e8-bd24-6b9e3675fa84

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/265408/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.1293.13203.31068.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Launching a process

Creating a file

Сreating synchronization primitives

Launching cmd.exe command interpreter

Searching for synchronization primitives

DNS request

Sending an HTTP GET request

Sending a custom TCP request

Unauthorized injection to a system process

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

aspnet_compiler.exe obfuscated overlay packed packed replace.exe

Link:

https://www.filescan.io/uploads/62611b35eab80a7a6c526b92/reports/5b541a00-3ed2-4201-9b67-fa653b0fbb91/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.

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/0df1ceaa-9ec0-4a8c-bb46-7b850f16ea2d

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/980511

Signature

.NET source code contains potential unpacker

.NET source code contains very large strings

Allocates memory in foreign processes

C2 URLs / IPs found in malware configuration

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 submitted file

Queues an APC in another process (thread injection)

Sample uses process hollowing technique

Tries to detect virtualization through RDTSC time measurements

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2022-04-21 07:44:33 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 26 (80.77%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=owlgw4hlcvj2s7wktk4iiez5v357wpa5fb4qkab7oikyqqob2fgq._file

Verdict:

malicious

Label(s):

formbook

Formbook

0da36b7f7e4b44b640ab5769532fdd7599032ca2b1d6b57807ba48ad1fa76780

Formbook

232a16efaec47e6d4fc8f5318ed9d9d58198daef519f30a5d9147d38f293638c

Formbook

417c951fb4d744d1446011b1e2e36e76d450801fa8072d72ea600d323d03a8c5

Formbook

53685ac5f275b61fc580f2203e7d7e431d2b03b8e4320015b428745d68d5e333

Formbook

9050768f69225078f05d535401510a5b361dd071430e40639e869c7247621908

Formbook

97e3431b489d64fb200c178334d0229cea2495e7f01856ac8571e4f085636b73

Formbook

f80dd0bf7402bebd03d303c97c8dd3f921d3e923a2521f4a2af2e4bf3c288aa1

Formbook

fb7daeb6acb1f5f48fdd4a0f20d43f1d47274a04bf8775cb2ec94aad4f6ab6cf

Formbook

+ 15'066 additional samples on MalwareBazaar

Result

Malware family:

xloader

Score:

10/10

Tags:

family:xloader campaign:ocgr loader rat

Link:

https://tria.ge/reports/220421-ksrbmaeac7/

Behaviour

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

Suspicious use of SetThreadContext

Xloader Payload

Xloader

Unpacked files

SH256 hash:

e10ba5cc585d171f0ccfec94106ef2b5722ac0099578d6fc86f70e191c85cf4a

MD5 hash:

1f2cd845a243674b3d3d21dde3a1585e

SHA1 hash:

cc15749c6f452ec2d8dd14aa0fa6e55baa170f51

Link:

https://www.unpac.me/results/a50531d7-62f8-49f0-b2d7-c63a91e90c2a/

SH256 hash:

7d8cfd4eab4aa77fe66110e0832f4074973bd0145314cd89111d2d1bdd3688fc

MD5 hash:

2b79011633ef10f823aa3a3166eb0960

SHA1 hash:

a1e614ba1b7b8b5e04fcd5f0cb263105cb20a64e

Detections:

win_formbook_g0

win_formbook_auto

Link:

https://www.unpac.me/results/a50531d7-62f8-49f0-b2d7-c63a91e90c2a/

Parent samples :
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SH256 hash:

75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d

MD5 hash:

8c83bcf93707223bc2510242032476c5

SHA1 hash:

433db2b2b7e4bd1103cf4aaa98a1498ce6bf48a3

Link:

https://www.unpac.me/results/a50531d7-62f8-49f0-b2d7-c63a91e90c2a/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d

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:	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

exe 75966b70eb1553a97eca9ab884133daefbfb3c1d287905003f72158841c1d14d

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2158302/

Cape

https://www.capesandbox.com/analysis/265408/

Comments

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zbet commented on 2022-04-21 08:51:55 UTC

url : hxxp://103.89.89.198/clouddoc/vbc.exe