MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 556a4973c2f7bd1d99444756fec11e842197d51161843d470a7857be044f5b9b. 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 3 File information Comments 1

SHA256 hash:	556a4973c2f7bd1d99444756fec11e842197d51161843d470a7857be044f5b9b
SHA3-384 hash:	c42159bf3cb6203563fbca1124004dc200344d7bf8cf2e5c62a36eca4c4dd5681bd5945c15b160e82db13ad09a69d6a6
SHA1 hash:	9fc40d6e80b5fc86f7b56302e56876b6676d1c56
MD5 hash:	3eb8db685b6f410b440e9d9bc612f59d
humanhash:	mockingbird-jersey-victor-bacon
File name:	3eb8db685b6f410b440e9d9bc612f59d
Download:	download sample
Signature	Formbook Create hunting rule
File size:	279'133 bytes
First seen:	2022-04-14 11:23:29 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	3abe302b6d9a1256e6a915429af4ffd2 (270 x GuLoader, 38 x Formbook, 25 x Loki)
ssdeep	6144:zjgwuXd7pfqhREq+KroIFPC5oLrrJM348OTpotVoDdBS4:o7XdJURh+KroI1C5WKOpaVoBBV
TLSH	T1945412321AF5CDBFD59306720EBAB6BAE3B91201001501DB93512FB97D2A7D1A62D09F
TrID	48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 16.4% (.EXE) Win64 Executable (generic) (10523/12/4) 10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):
dhash icon	b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter	zbetcheckin
Tags:	32 exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

277

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

formbook

ID:

File name:

13.04.2022.xlsx

Verdict:

Malicious activity

Analysis date:

2022-04-14 07:39:37 UTC

Tags:

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

Link:

https://app.any.run/tasks/209dad43-f3ec-43ca-971a-e12034f540bb

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/263683/

Detection(s):

Win.Trojan.Injectorx-9944056-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Creating a file in the %temp% directory

Creating a process from a recently created file

Сreating synchronization primitives

Launching a process

Launching cmd.exe command interpreter

Searching for synchronization primitives

DNS request

Sending an HTTP GET request

Unauthorized injection to a recently created process by context flags manipulation

Unauthorized injection to a system process

Result

Malware family:

n/a

Score:

5/10

Tags:

n/a

Link:

https://dragonfly.certego.net/analysis/13850/overview

Behaviour

MalwareBazaar

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

control.exe formbook overlay packed shell32.dll

Link:

https://www.filescan.io/uploads/6258046eeab80a7a6c1267f5/reports/7e087a30-e661-430f-bc8f-f63a977ca37d/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

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/4d5f8c17-7c6e-46e5-9870-35b88dea8dc2

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/976802

Signature

Antivirus detection for URL or domain

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)

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

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

System process connects to network (likely due to code injection or exploit)

Tries to detect virtualization through RDTSC time measurements

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Detection:

xloader

Link:

https://mwdb.cert.pl/sample/556a4973c2f7bd1d99444756fec11e842197d51161843d470a7857be044f5b9b/

Threat name:

Win32.Trojan.FormBook

Status:

Malicious

First seen:

2022-04-13 12:22:09 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

16 of 25 (64.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=kvves46c666r3gkei5lp5qi6qqqzpvirmgcd2rykpbl34bcplonq._file

Verdict:

malicious

Label(s):

formbook

Result

Malware family:

xloader

Score:

10/10

Tags:

family:xloader campaign:w6ot loader rat

Link:

https://tria.ge/reports/220414-nhp8cshgh2/

Behaviour

Enumerates system info in registry

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

Loads dropped DLL

Executes dropped EXE

Xloader Payload

Xloader

Unpacked files

SH256 hash:

95be8af8aa0914fc9109f637a7029a091d02c278c6f7d44a4f951aa7e4667d9e

MD5 hash:

411930822f5a4521d00377405d4e3853

SHA1 hash:

4ec598cd93660168655eb1afa2eb3a3c809fcfc0

Detections:

win_formbook_g0

win_formbook_auto

Link:

https://www.unpac.me/results/968fec7e-4013-4aca-b5c0-818131ffeffe/

Parent samples :
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SH256 hash:

3b0bcae00bcd6ab5ccdb7c34df338afaeb65e686ac4599643b4f4577f6438b61

MD5 hash:

9f19678af243b1de27b0896059f3edd5

SHA1 hash:

0be2a536532bf6458a99074b5d188ad591705281

Link:

https://www.unpac.me/results/968fec7e-4013-4aca-b5c0-818131ffeffe/

SH256 hash:

556a4973c2f7bd1d99444756fec11e842197d51161843d470a7857be044f5b9b

MD5 hash:

3eb8db685b6f410b440e9d9bc612f59d

SHA1 hash:

9fc40d6e80b5fc86f7b56302e56876b6676d1c56

Link:

https://www.unpac.me/results/968fec7e-4013-4aca-b5c0-818131ffeffe/

Malware family:

XLoader

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/556a4973c2f7/report/overview.html

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

Threat name:

Legit

Score:

0.18

Link:

https://yomi.yoroi.company/submissions/556a4973c2f7bd1d99444756fec11e842197d51161843d470a7857be044f5b9b

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:	Ins_NSIS_Buer_Nov_2020_1 Create hunting rule
Author:	Arkbird_SOLG
Description:	Detect NSIS installer used for Buer loader

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