MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51a4706290a1e3d57684d218dc1bc95bb7435ae9108a1d845d6eaa88fdddcb40. 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 2 File information Comments 1

SHA256 hash:	51a4706290a1e3d57684d218dc1bc95bb7435ae9108a1d845d6eaa88fdddcb40
SHA3-384 hash:	1e4d3bd7fce1676093390f4820b9645176e986dbbdf52ebc2c9353544d86cb4d51937b74f10231b6cd3c68288e40209f
SHA1 hash:	547268c2c13167ad6cb4ccbe267ff0391b95ddaf
MD5 hash:	104933aa1049a47e753635f2c0e25589
humanhash:	timing-july-fillet-robert
File name:	104933aa1049a47e753635f2c0e25589
Download:	download sample
Signature	Formbook Create hunting rule
File size:	218'805 bytes
First seen:	2022-04-29 14:43:03 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep	6144:HNeZmdChTQNR6Y62X86H129DbhBeScAvx4RiB:HNldC5IHkzBexAZ4MB
Threatray	15'288 similar samples on MalwareBazaar
TLSH	T10524121522E4D0B7E8A722F22DBA46B58FFBB10D1070870F63941F5DBA36692D52F721
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 :

270

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

formbook

ID:

File name:

PO 19600377.xlsx

Verdict:

Malicious activity

Analysis date:

2022-04-29 12:32:23 UTC

Tags:

exploit CVE-2017-11882 loader formbook trojan stealer

Link:

https://app.any.run/tasks/f4b47616-4c52-4560-92f2-597e89481be4

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/267840/

Detection(s):

SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Creating a process from a recently created file

Launching a process

Сreating synchronization primitives

Launching cmd.exe command interpreter

Searching for synchronization primitives

Setting browser functions hooks

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Unauthorized injection to a system process

Unauthorized injection to a browser process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

control.exe formbook nemesis overlay packed python shell32.dll

Link:

https://www.filescan.io/uploads/626bf9b4bc7a594526702f34/reports/86e69f47-6b21-4398-af5d-b4f4164badf4/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.

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/f270a451-b481-473d-a856-96cdb0183742

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/985555

Signature

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)

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)

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

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queues an APC in another process (thread injection)

Sample uses process hollowing technique

Snort IDS alert for network traffic

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:

n/a

Link:

https://mwdb.cert.pl/sample/51a4706290a1e3d57684d218dc1bc95bb7435ae9108a1d845d6eaa88fdddcb40/

Threat name:

Win32.Trojan.NSISInject

Status:

Malicious

First seen:

2022-04-26 17:26:13 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 26 (84.62%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=kgshayuquhr5k5ue2imnyg6jlo3ugwxjccfb3bc5n2vir7o5znaa._file

Verdict:

malicious

Label(s):

formbook

Formbook

0c66120f301e6e13d6b760c5a63f36aed5fd338626a5abfab3f3750b7302d992

Formbook

1c1307eefcccf13fa510b275d6286cae2b6d6fdd5c656d0fe5d5479c09df3310

Formbook

62a133737bf99458c62e6566242f54858beced700c8285b8e77b856166a6ec05

Formbook

6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2

Formbook

8392408d685d10ddf024a7e4f47976e03a00fd787bd4ee0932766c4b9b278bc0

Formbook

88eed605657dcc9cc542b4a3850b49e5ee83ffa39120c04669fb9f1d53955c43

Formbook

c652919676cc6f3ea808c6e1023de343d27ed8f72f4f1b94523c4ecfb09bf223

Formbook

c8f9dc774ab6e27b3116b72c28e68a88e087bc1648c1a96509c26e33575ba9cc

Formbook

+ 15'278 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:nk6l rat spyware stealer suricata trojan

Link:

https://tria.ge/reports/220429-r3lx8abag7/

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

Enumerates physical storage devices

Suspicious use of SetThreadContext

Loads dropped DLL

Blocklisted process makes network request

Executes dropped EXE

Formbook Payload

Formbook

suricata: ET MALWARE FormBook CnC Checkin (GET)

Unpacked files

SH256 hash:

0e1521527fc0e27ab2d1d7575c028b29310c7ef8bf84702c12b7c36429901185

MD5 hash:

5bb3db7175bd264439837b3f85cdeffe

SHA1 hash:

80956fed5d3c5f5f8aaffc424d8aeb549fce3d00

Link:

https://www.unpac.me/results/924544fc-7a90-40b3-aa8b-299c1b0e0a59/

SH256 hash:

7ac5e6eb86588440744ff77db9bff26329e0a8c03ef0f0ab5c6af7cfaed92b39

MD5 hash:

b1d2fabc86174b4e8eedc576fa0b0955

SHA1 hash:

304ad48051355a0fe9d2e548276dec2137c308da

Link:

https://www.unpac.me/results/924544fc-7a90-40b3-aa8b-299c1b0e0a59/

SH256 hash:

e24ffd2ae582c20b1b6155377f5b31cc7eba94f214fecbdeffa3d5b5c42f63fe

MD5 hash:

46e5cfa195b87ce2d352b9985bc03fe8

SHA1 hash:

4e058350d01b3445f41cf671603a6b507d2b6dd5

Detections:

win_formbook_g0

win_formbook_auto

Link:

https://www.unpac.me/results/924544fc-7a90-40b3-aa8b-299c1b0e0a59/

Parent samples :
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SH256 hash:

51a4706290a1e3d57684d218dc1bc95bb7435ae9108a1d845d6eaa88fdddcb40

MD5 hash:

104933aa1049a47e753635f2c0e25589

SHA1 hash:

547268c2c13167ad6cb4ccbe267ff0391b95ddaf

Link:

https://www.unpac.me/results/924544fc-7a90-40b3-aa8b-299c1b0e0a59/

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/51a4706290a1e3d57684d218dc1bc95bb7435ae9108a1d845d6eaa88fdddcb40

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