MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 855dd7cf56397cb61245d06f6ed38576c71826737101275f66167986e602036f. 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 3 File information Comments
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SHA256 hash: 855dd7cf56397cb61245d06f6ed38576c71826737101275f66167986e602036f
SHA3-384 hash: 21fd767855ec591adf089685ef80e17727ecd50abe52cdd905321b77fd94baaa016abac748d04472dfe4800b357b6402
SHA1 hash: 38940f6ab390ec2006693883bf5585a7ec38c0c6
MD5 hash: 9b316c1286cf6a10bf2447c128a76b46
humanhash: ink-oranges-mango-april
File name:invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'153'024 bytes
First seen:2021-08-14 06:47:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:v/5pbb50EvcBQ3Tp4/IH3fjWqqhh8BAPg6OO3jTruN/YlRxsCplsj9lj/P61:v/5d5ABQ3TbH3fdqXP+O3jTruN/
Threatray 7'812 similar samples on MalwareBazaar
TLSH T1D435813C29FD263FC0A6D675CBE28C13B00168AF7121AD5594C7572E532AA437AC727E
dhash icon 70f0eab2e0ecf070 (15 x AgentTesla, 9 x Loki, 7 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice.exe
Verdict:
Malicious activity
Analysis date:
2021-08-14 06:56:23 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/56af8e41-3cfd-45a3-9ff4-fffb33991159

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/179154/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.59996.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Launching cmd.exe command interpreter
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b66cba31-c90c-4887-97a5-ba38e88f4d6f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/832784
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Process Start Without DLL
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 465218 Sample: invoice.exe Startdate: 14/08/2021 Architecture: WINDOWS Score: 100 41 www.stonelodgeseniorliving.com 2->41 43 stonelodgeseniorliving.com 2->43 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 11 other signatures 2->57 11 invoice.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\kdZXxBrW.exe, PE32 11->33 dropped 35 C:\Users\...\kdZXxBrW.exe:Zone.Identifier, ASCII 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmp56B2.tmp, XML 11->37 dropped 39 C:\Users\user\AppData\...\invoice.exe.log, ASCII 11->39 dropped 67 Uses schtasks.exe or at.exe to add and modify task schedules 11->67 15 RegSvcs.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 2 other signatures 15->75 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 45 stm32heaven.com 192.0.78.24, 49737, 80 AUTOMATTICUS United States 20->45 47 www.stm32heaven.com 20->47 49 2 other IPs or domains 20->49 59 System process connects to network (likely due to code injection or exploit) 20->59 26 wscript.exe 20->26         started        signatures11 process12 signatures13 61 Modifies the context of a thread in another process (thread injection) 26->61 63 Maps a DLL or memory area into another process 26->63 65 Tries to detect virtualization through RDTSC time measurements 26->65 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/855dd7cf56397cb61245d06f6ed38576c71826737101275f66167986e602036f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-13 19:54:56 UTC
AV detection:
18 of 27 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qvo5pt2whf6lmesf2bxw5u4fo3drqjttoeasox3gcz4ynzqcanxq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0655ee712ee939add7c23e011eb887fe70f085e1fea6df1dbeb07bc8df7ffdb7
Formbook
085dd3415a1c0c601af338a15905c650935e18505e6ca71bf6ece1602bba19c3
Formbook
0f600e10b529dc3af8dabf5aa567598fe6a0c5a373d4f20e9fba390735257bbe
Formbook
1640d521a0e5aff2aeb9eb892c8b19d0897e22c73940c394a5cb12af271de6ec
Formbook
27db806a5b1919f930f40810624889f20bcafaa485c89d4ca522fe6335dfea1f
Formbook
5e2d9b3536977961e44f32504185c28b766c9a1c0cd01aee0c19591f6f3441a4
Formbook
ca928ee1114c01bf51f11b5200d0da9a823cd35cc4e616ddd3f44ddd3f3fcb56
Formbook
f774626e850950a6f1cbbda4a4b25a729ef33c64b31b9e7692e9d1e1b6405bfc
Formbook
+ 7'802 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:odse rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210814-8vtpbdsanj/
Behaviour
Creates scheduled task(s)
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.guncelekspres.com/odse/
Unpacked files
SH256 hash:
f65d38f39df1accd6db2e1a2adc794a8ef34b7f1a9f15c514d766b2d6d4614f0
MD5 hash:
c20fbf2573012e31b1414040e8d42add
SHA1 hash:
cb6024805866ece5ed1bb3d70565772393f4749b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/fcdb68a7-abf7-4e0e-b21b-7783c0e43227/
Parent samples :
f774626e850950a6f1cbbda4a4b25a729ef33c64b31b9e7692e9d1e1b6405bfc
27db806a5b1919f930f40810624889f20bcafaa485c89d4ca522fe6335dfea1f
3483cc6eba3064bdf286495937743beb05a6bd065078b3dbea8c77880c6fca3c
ca928ee1114c01bf51f11b5200d0da9a823cd35cc4e616ddd3f44ddd3f3fcb56
085dd3415a1c0c601af338a15905c650935e18505e6ca71bf6ece1602bba19c3
855dd7cf56397cb61245d06f6ed38576c71826737101275f66167986e602036f
741e54e8d4c95d3a939bea610b4805e417a0662e17e5811aa72466d74f0fe9b4
a532458e37a48eb5222790c56e237b35a6bcd75268527e466890123e4c4778e7
0ea373a09883cb6339962ddab7b1ad826710111758ffb711fb7f126cc7d33ea5
3f3c53a643260b21d81b37581469b76fd19edc2740ee31aa983f81b2c65e74a5
543729a7f72081c00b50ebfb1ec6365925756857937766652489076767e330e0
4dec69f31c55cf28bb74dc237a3880ef1f1543c34f9a4fd9643b6ea9866eeb29
77da1358bc7f192ab8a303e8693c4ff0d859f17497d5dd30f5985c4cfc81cc73
4e7de7114cb5947cee9d0f5fa60f4ad2be8db68364a4f8f4b1a6ca4f5fe1a4ee
SH256 hash:
33ac6b8012ce739e72022086b5d39b7fc030c20fa72988f76957685509d5c041
MD5 hash:
83f8ae95a7e6f016f6b00482588086e6
SHA1 hash:
70392939d6d60a913b51084ec1d98eaae8ca4868
Link:
https://www.unpac.me/results/fcdb68a7-abf7-4e0e-b21b-7783c0e43227/
SH256 hash:
5f571b1a592cdbdc7564b720fcf5acf3f5457ad589825b03a536c97c6f391023
MD5 hash:
5caf4e5ff65ff4eae5a7c2f3bedbbeb9
SHA1 hash:
3c2d13736f31ea43422e7293e7537d0d5a5236e0
Link:
https://www.unpac.me/results/fcdb68a7-abf7-4e0e-b21b-7783c0e43227/
SH256 hash:
855dd7cf56397cb61245d06f6ed38576c71826737101275f66167986e602036f
MD5 hash:
9b316c1286cf6a10bf2447c128a76b46
SHA1 hash:
38940f6ab390ec2006693883bf5585a7ec38c0c6
Link:
https://www.unpac.me/results/fcdb68a7-abf7-4e0e-b21b-7783c0e43227/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/855dd7cf5639/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/855dd7cf56397cb61245d06f6ed38576c71826737101275f66167986e602036f

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 855dd7cf56397cb61245d06f6ed38576c71826737101275f66167986e602036f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/179154/

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