MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8eaea107d52393bc327b1f69696169cee58ee72037fbbff1cf89019f872fe9f. 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: 18


Intelligence 18 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8eaea107d52393bc327b1f69696169cee58ee72037fbbff1cf89019f872fe9f
SHA3-384 hash: 7090c828775fd15784668ae73729bdc4e9d1ee99ae0652ea5d457e6ec6c3678085f4c5e8a1222b04a47c7c8f83b9c169
SHA1 hash: e9eabe5c466a741fe5b49c96cd14390511a3cfc9
MD5 hash: 0a3506bbf74aae38a9c80792d5df650d
humanhash: maryland-cold-batman-massachusetts
File name:SKM_C3350191107.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:234'548 bytes
First seen:2022-05-17 08:47:12 UTC
Last seen:2022-05-23 11:56:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:KYa6VEVDNIG79+mPekqK50mO7b0UinRXarfnZcWBn:KYrYIc9+8Fjvq05RXabZ11
Threatray 15'585 similar samples on MalwareBazaar
TLSH T13D34F1152891955BD4D07BF01E30A167AA767CA21138814B5BF0BF69B973313ECCB3AE
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 174f4559191b1b13 (81 x AgentTesla, 68 x Formbook, 34 x SnakeKeylogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SKM_C3350191107.exe
Verdict:
Malicious activity
Analysis date:
2022-05-18 05:49:07 UTC
Tags:
formbook trojan stealer phishing
Link:
https://app.any.run/tasks/8589fd9a-8646-4d69-a41e-78be43a15d1f

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/271416/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for the window
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
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/18223/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe formbook overlay packed shell32.dll winlock
Link:
https://www.filescan.io/uploads/6283614970e563c3836a8b91/reports/5cb02ab3-97fe-4ffb-96c7-e1d158631fa7/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/1b927875-925c-4336-91cd-ae838a6be94c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/995626
Signature
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
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 628123 Sample: SKM_C3350191107.exe Startdate: 17/05/2022 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->46 48 3 other signatures 2->48 10 SKM_C3350191107.exe 19 2->10         started        process3 file4 32 C:\Users\user\AppData\Local\...\ovnmaiw.exe, PE32 10->32 dropped 13 ovnmaiw.exe 1 10->13         started        process5 signatures6 56 Multi AV Scanner detection for dropped file 13->56 58 Machine Learning detection for dropped file 13->58 60 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->60 62 3 other signatures 13->62 16 ovnmaiw.exe 13->16         started        19 conhost.exe 13->19         started        process7 signatures8 34 Modifies the context of a thread in another process (thread injection) 16->34 36 Maps a DLL or memory area into another process 16->36 38 Sample uses process hollowing technique 16->38 40 Queues an APC in another process (thread injection) 16->40 21 netsh.exe 16->21         started        24 explorer.exe 16->24 injected process9 signatures10 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 26 cmd.exe 1 21->26         started        28 explorer.exe 148 21->28         started        process11 process12 30 conhost.exe 26->30         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8eaea107d52393bc327b1f69696169cee58ee72037fbbff1cf89019f872fe9f/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2022-05-17 07:11:39 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xdvoued5ki4txqzhwh3jnfqwttxfr3tsan73x7y47cibt6ds72pq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
387234df5ff2369a1a2bd25b060d5d7dd3817e07577baadd33bdf5c2dc7725c1
Formbook
6b19bf1ec55b55f38c00c74fd66dd45c8d7e12eebebca913c4d21152ed0ced8c
Formbook
6fdd9a50a2d96e6516d38fc90084cca38559705db75350d22e2abd31a8806b83
Formbook
c1784c72cf689294811cf3f79a5b05a42207842e718bc1a3a2d40fa80d876ff8
Formbook
d10fba55c54c50040046d409fb6d03593bb0c3c15d241803f1b1aeeb16885a6e
Formbook
d7dc569e0cf8cc6afc0a4a922263195ea12051b1db428fcf9fba724d90261a5e
Formbook
d951d78db324f840c3dd3233c7900a8193329d769550cbf1c8857d5ef3fb5252
Formbook
eba97a314b1c02ecdd75fe691c6883b214dc0b239d0ba39b7d578162b5218ad0
Formbook
f156099a9282dcdcab3acbf57c50bc1d0121a6e9714d43ba69ab9934ab0d9439
Formbook
+ 15'575 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:he8c loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220517-kqe6kscbhl/
Behaviour
Gathers network information
Modifies Internet Explorer settings
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
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
ec9e9402fcdb070a3f71deea025a57e42ec4d8211b15f713e0e619f518d8f8da
MD5 hash:
9e7f4c3313b485c24ac910e31cad4076
SHA1 hash:
b2424a228ce80ebec766a5684ea5192b2e1cae95
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/76262b0b-84a6-49e8-be90-9015104947a8/
Parent samples :
d10fba55c54c50040046d409fb6d03593bb0c3c15d241803f1b1aeeb16885a6e
b8eaea107d52393bc327b1f69696169cee58ee72037fbbff1cf89019f872fe9f
599fdd54ded9239527033a4d51f408f92dcb23ced86c8885b47e1f74949397a4
SH256 hash:
8c91067267f6f3b5b4380a6f4eacfbb8bc1705a11a9d805d6a9936775bfc3882
MD5 hash:
c76974604535f8641158fd9e9f5cf3d9
SHA1 hash:
4262ac3f904b821c91db5693590d47c5c3e687c2
Link:
https://www.unpac.me/results/76262b0b-84a6-49e8-be90-9015104947a8/
SH256 hash:
b8eaea107d52393bc327b1f69696169cee58ee72037fbbff1cf89019f872fe9f
MD5 hash:
0a3506bbf74aae38a9c80792d5df650d
SHA1 hash:
e9eabe5c466a741fe5b49c96cd14390511a3cfc9
Link:
https://www.unpac.me/results/76262b0b-84a6-49e8-be90-9015104947a8/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b8eaea107d52/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/b8eaea107d52393bc327b1f69696169cee58ee72037fbbff1cf89019f872fe9f

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 b8eaea107d52393bc327b1f69696169cee58ee72037fbbff1cf89019f872fe9f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/271416/

Comments