MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 198c558555aa9886053d5ae9678a6179eb9305d34d3abfc41cdf1f4e56af1691. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 198c558555aa9886053d5ae9678a6179eb9305d34d3abfc41cdf1f4e56af1691
SHA3-384 hash: 4d2153bb197929b3d7271307a6f8375091be663506c63f6c1de7b0197c2b00cde05be587011fc3a7f867ef9048ef5d0f
SHA1 hash: 38f4f8b8e7538ed24d5dd74d39eb27275657e847
MD5 hash: e84cb389cb49c243e089c605e23253cb
humanhash: one-low-ohio-vermont
File name:Proforma Invoice number SNI 430622-R2.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:614'400 bytes
First seen:2022-07-04 10:02:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:rnaHsL2iNOeviiFL79WPS0o5b1e2QOXLfYD96C:raa13vNBcrWb1eAXp
TLSH T15ED4D084B363BF3AF17967B77842908817B2A45DA4E1D6298E9DB0DE317574208F4F23
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Win.Dropper.Formbook-9954360-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62c2badf11764e36f8128a9c/reports/39881712-6c51-46f5-8d38-407af7df6fcb/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/2bee90a8-bbd7-4cff-a762-4e215d3a1539
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1024154
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 656647 Sample: Proforma Invoice number SNI... Startdate: 04/07/2022 Architecture: WINDOWS Score: 100 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 9 other signatures 2->41 10 Proforma Invoice number SNI 430622-R2.exe 3 2->10         started        process3 file4 27 Proforma Invoice n...I 430622-R2.exe.log, ASCII 10->27 dropped 13 Proforma Invoice number SNI 430622-R2.exe 10->13         started        process5 signatures6 49 Modifies the context of a thread in another process (thread injection) 13->49 51 Maps a DLL or memory area into another process 13->51 53 Sample uses process hollowing technique 13->53 55 Queues an APC in another process (thread injection) 13->55 16 explorer.exe 13->16 injected process7 dnsIp8 29 www.spuriousglass.com 103.224.212.222, 49853, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 16->29 31 www.glvlv1k.com 23.224.182.3, 49894, 80 CNSERVERSUS United States 16->31 33 System process connects to network (likely due to code injection or exploit) 16->33 20 svchost.exe 16->20         started        signatures9 process10 signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/198c558555aa9886053d5ae9678a6179eb9305d34d3abfc41cdf1f4e56af1691/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-30 11:23:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dggflbkvvkmimbj5lluwpctbphvzgbotju5l7ra434pu4vvpc2iq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sd28 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220704-l3cfwsgcfn/
Behaviour
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 WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
3612648d359926e1b1cd84e2202b671b5dada668926bf3ebf65ea4d140fde02a
MD5 hash:
f225c9e2d469578a1fc1758db5d57024
SHA1 hash:
86dfaa0a1cdf2ef14beb5723067a8399cab779b3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/80fe82f0-57e7-46a6-b872-8533a72f1c0d/
Parent samples :
198c558555aa9886053d5ae9678a6179eb9305d34d3abfc41cdf1f4e56af1691
8cb142a709e095c0270fbc174b4fa322f11e046d1d6197c9c34c34f8051f1a27
c15b6c5b17eaedb2a9bfec349a7c7a394a3ff40440728a4fe52109530f6e89ce
ea0537606344cb60ca5159b9337165626af8301982b0d77020b4f49a0a6ef7b0
SH256 hash:
2eb92c4d2aa51bea21ac4ca85dadb69df78cee6fa74955760c5d1b52e5dcd6c0
MD5 hash:
0477c9199971a32e5f00f658ee0fa1bd
SHA1 hash:
a82f7680f3373f353ed6d41816e06dd96f7a26d3
Link:
https://www.unpac.me/results/80fe82f0-57e7-46a6-b872-8533a72f1c0d/
SH256 hash:
ceec0c11ace84fd8d8ad9a3d59de0a7cef44ef29b141715f13ba6a8eb8b47cb5
MD5 hash:
c2587f8235a493e90b8ac72d230fbcc7
SHA1 hash:
600a04f54861c17ae07e63cfc6e09c3943e621f5
Link:
https://www.unpac.me/results/80fe82f0-57e7-46a6-b872-8533a72f1c0d/
SH256 hash:
a3b9cbdf3494393498f568c9f5a167bb4ca64d9bc2f083177db0f7fff9267533
MD5 hash:
a3dbee162de392951be780ae1d05efbb
SHA1 hash:
5af864c93cf01f6851cf7650d2019979b0bc1700
Link:
https://www.unpac.me/results/80fe82f0-57e7-46a6-b872-8533a72f1c0d/
SH256 hash:
16b9fc4700292684bae0ef2da4a4f4b393103771e93c0b48747df8a24af40d59
MD5 hash:
12ae0e4078e6e9da25181468d72b7ef4
SHA1 hash:
3f88feb096debc12d2f72bac4dfe7e799c7bbf36
Link:
https://www.unpac.me/results/80fe82f0-57e7-46a6-b872-8533a72f1c0d/
SH256 hash:
198c558555aa9886053d5ae9678a6179eb9305d34d3abfc41cdf1f4e56af1691
MD5 hash:
e84cb389cb49c243e089c605e23253cb
SHA1 hash:
38f4f8b8e7538ed24d5dd74d39eb27275657e847
Link:
https://www.unpac.me/results/80fe82f0-57e7-46a6-b872-8533a72f1c0d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/198c558555aa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Malspam

Formbook

Executable exe 198c558555aa9886053d5ae9678a6179eb9305d34d3abfc41cdf1f4e56af1691

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments