MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6. 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

SHA256 hash:	9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6
SHA3-384 hash:	5dfccdf5c8657392986f26770f384168f2363b88db782a7849c16fa7c12a92650eec2435dc2649a0e945763911f27518
SHA1 hash:	3b6af5f320f22bd30dcd173264b6a038b7f58e02
MD5 hash:	855488f222e09e27c29442cb968ecd6c
humanhash:	nevada-seventeen-utah-nineteen
File name:	bin-ups00_cHKimre249.bin
Download:	download sample
Signature	Formbook Create hunting rule
File size:	185'856 bytes
First seen:	2021-03-03 09:42:59 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
ssdeep	3072:IiCHuJtaK2Tcw6U7u00fVkw/KsqyIG8bhXrzOS2mJ56SejuHebYFSrYn:I5KKhiZtkgKsq82/+mSSezbUV
TLSH	6404AE32D642C031E2B251B5B67D0B7B493E0E357295A0E6E3E116E06FE45E9F12A31F
Reporter	Anonymous
Tags:	FormBook

Anonymous

GuLoader/CloudEyE formbook drop from hxxps://01677937777.burrow[.]io/spark/bin-ups00_cHKimre249.bin

Intelligence

File Origin

# of uploads :

# of downloads :

132

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

bin-ups00_cHKimre249.bin

Verdict:

Malicious activity

Analysis date:

2021-03-03 09:45:08 UTC

Tags:

trojan formbook stealer

Link:

https://app.any.run/tasks/3da7f4e2-e0fd-4be1-a91d-01f78caded77

Note:

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

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/121315/

Detection(s):

SecuriteInfo.com.Trojan.PWS.Banker1.29984.UNOFFICIAL

Win.Malware.Formbook-7399661-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Launching a process

Launching cmd.exe command interpreter

Sending a UDP request

Setting browser functions hooks

Unauthorized injection to a system process

Unauthorized injection to a browser process

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.

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/625871

Signature

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Found malware configuration

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)

Modifies the prolog of user mode functions (user mode inline hooks)

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 virtualization through RDTSC time measurements

Uses netstat to query active network connections and open ports

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Detection:

formbook

Link:

https://mwdb.cert.pl/sample/9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6/

Threat name:

Win32.Trojan.FormBook

Status:

Malicious

First seen:

2021-03-03 09:43:05 UTC

AV detection:

42 of 46 (91.30%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=twwfomboejq2di6guzs5hfqfewzh7nykd7lldyjvupts6eog6pta._file

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook rat spyware stealer trojan

Link:

https://tria.ge/reports/210303-4y98ce3yaa/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Deletes itself

Formbook Payload

Formbook

Malware Config

C2 Extraction:

http://www.bluedotvrshop.com/twy/

Unpacked files

SH256 hash:

9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6

MD5 hash:

855488f222e09e27c29442cb968ecd6c

SHA1 hash:

3b6af5f320f22bd30dcd173264b6a038b7f58e02

Detections:

win_formbook_g0

win_formbook_auto

Link:

https://www.unpac.me/results/70ad9638-ffcb-4561-b7f6-7ae285f1ebeb/

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

Threat name:

Formbook

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6

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:	Formbook Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Formbook in memory
Reference:	internal research

Rule name:	INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu Create hunting rule
Author:	ditekSHen
Description:	Detect executables with stomped PE compilation timestamp that is greater than local current time

Rule name:	INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture Create hunting rule
Author:	ditekSHen
Description:	Detect executables with stomped PE compilation timestamp that is greater than local current time

Rule name:	win_formbook_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator