MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c49e10b71164cb28229f08fba45ab506ac10af747eaedd013f66769afdfa1f44. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c49e10b71164cb28229f08fba45ab506ac10af747eaedd013f66769afdfa1f44
SHA3-384 hash: 426c976fe45ffa3729eb4ad93cbc1495a9ec1802d9153b5cf3d2de09779e6f68d440de213daedacc9b709ae6838f37f2
SHA1 hash: 5982ef6883c20b547432cd83e0295aba28927b7a
MD5 hash: 59b29ac5bd25663f1f2082b47487617e
humanhash: johnny-alaska-johnny-utah
File name:Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:196'903 bytes
First seen:2022-05-02 20:17:51 UTC
Last seen:2022-05-02 21:17:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:HNeZmS5QYRciZ8/mf6FisDB1gXgjzdGOZsBf/:HNloJ6wS7gQ3dAJ
Threatray 15'355 similar samples on MalwareBazaar
TLSH T1F114126877F0C427E5A24B717DF9862BFAF6291702A5890F2701AA9E3E535112F4D383
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):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
299
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Invoice.exe
Verdict:
Malicious activity
Analysis date:
2022-05-02 20:20:08 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/eb7dfa90-bd5b-40e9-8933-0dbffc20f3d6

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/268284/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
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/16100/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe formbook nemesis overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/62703cb8801e66012b214a18/reports/151013bf-4925-4575-9686-b0e08cc484ec/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/48aa71a7-141b-4efd-8ddc-db872142e4a0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/986750
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 dropped file
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 619244 Sample: Invoice.exe Startdate: 02/05/2022 Architecture: WINDOWS Score: 100 39 Multi AV Scanner detection for domain / URL 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 7 other signatures 2->45 11 Invoice.exe 18 2->11         started        process3 file4 29 C:\Users\user\AppData\...\gmvpcztobv.exe, PE32 11->29 dropped 14 gmvpcztobv.exe 11->14         started        process5 signatures6 49 Multi AV Scanner detection for dropped file 14->49 51 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->51 53 Tries to detect virtualization through RDTSC time measurements 14->53 55 Injects a PE file into a foreign processes 14->55 17 gmvpcztobv.exe 14->17         started        process7 signatures8 31 Modifies the context of a thread in another process (thread injection) 17->31 33 Maps a DLL or memory area into another process 17->33 35 Sample uses process hollowing technique 17->35 37 Queues an APC in another process (thread injection) 17->37 20 explorer.exe 17->20 injected process9 process10 22 help.exe 20->22         started        signatures11 47 Tries to detect virtualization through RDTSC time measurements 22->47 25 cmd.exe 1 22->25         started        process12 process13 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c49e10b71164cb28229f08fba45ab506ac10af747eaedd013f66769afdfa1f44/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-02 19:52:11 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
27 of 41 (65.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yspbbnyrmtfsqiu7bd52iwvva2wbbl3up2xn2aj7mz3jv7p2d5ca._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0b85c9aab7c6140599d8173317ba27c91694f2ebc33cdd8559ff462d7fef1c27
Formbook
2385821f2732aafbdf3ddde31c314ddfaad694ad9261e4b40961b61a1a78cf64
Formbook
2d79a5c2368aba8773c00aa3dcfaa0eaf9fe2f80f15bdda080abeb4988940e1b
Formbook
39586764971f496d274f3d453029954720962ed36672050b742aef8b4e68a78e
Formbook
7b95105b71a0dbe7c8e10d0c795271c57e16c5425543351d2d7ac74732624b7a
Formbook
842a75ab92773e52741160c011f7265b489d57d82bdb8e1e6a5582b8852d8f3d
Formbook
8f4a5af16c851db0d2a640ae0c1d6294d603d8995bf7666424388daa0c910fbf
Formbook
95c6926c4af01e7a782b16967a66b3c349f24a6ab2393b1a20c47e28a1ad7249
Formbook
e649ef1ecf0e0daefe140fa78271435271c8d55607f8365ddef4d94b66bfdfdd
Formbook
+ 15'345 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:3e9r loader rat suricata
Link:
https://tria.ge/reports/220502-y29ffsbdck/
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
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f3676ce5fdcf3c851834336dda7b38ad174644b0a794234a0f1d2e55512f7176
MD5 hash:
8bf113bc6b32cd9f8b2465345612f7c6
SHA1 hash:
7932224cfcf575bb73a586a4738cc0f2aeae86fd
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1a3d2bb4-a033-4f8e-a769-f3255738eb56/
Parent samples :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 hash:
c7091a233caabe5930e0cf5982dca1e85b12dcc47d0157c437113a2bbe22345b
MD5 hash:
4984e55a80a741219c8ac3fb12cf35e7
SHA1 hash:
6d228a81c18cdafb929f26b6998135c63ff4db44
Link:
https://www.unpac.me/results/1a3d2bb4-a033-4f8e-a769-f3255738eb56/
SH256 hash:
25b30b7b37b3ee92ad591789d62ad6680ae6ffacc6f7aaa414a2a8e8758b0a29
MD5 hash:
609faad9f2e568c5dc6ab2f7c42f1698
SHA1 hash:
dc5450b93733785c628f2caddb46dba2662d0e2b
Link:
https://www.unpac.me/results/1a3d2bb4-a033-4f8e-a769-f3255738eb56/
SH256 hash:
c49e10b71164cb28229f08fba45ab506ac10af747eaedd013f66769afdfa1f44
MD5 hash:
59b29ac5bd25663f1f2082b47487617e
SHA1 hash:
5982ef6883c20b547432cd83e0295aba28927b7a
Link:
https://www.unpac.me/results/1a3d2bb4-a033-4f8e-a769-f3255738eb56/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c49e10b71164/report/overview.html
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/c49e10b71164cb28229f08fba45ab506ac10af747eaedd013f66769afdfa1f44

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: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.

Malspam

Formbook

Executable exe c49e10b71164cb28229f08fba45ab506ac10af747eaedd013f66769afdfa1f44

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/268284/

Comments