MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
SHA3-384 hash: 2b4e4be76833e4f723f328122d8251ef99afa8fd6adb6a4cb280ed0a56cce23afc04a7b9679f745faffedcfb393c4709
SHA1 hash: 2c8b87e78b625e5436a559e92ffffaf4d7d5f3f9
MD5 hash: 7f44706f1c5ed5d723262bfa03b5500e
humanhash: mockingbird-aspen-timing-hawaii
File name:7f44706f1c5ed5d723262bfa03b5500e.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:741'376 bytes
First seen:2021-10-13 09:44:13 UTC
Last seen:2021-10-13 11:24:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:Jo3K9Dnnyx65H+MfjJN5M/lqLuyRkXBymUQOuRH6vDdpQ2T7BxzaJK+Go6Uq2:JocqGJaJ7BzUQOuR0RpQKExGZU
Threatray 9'996 similar samples on MalwareBazaar
TLSH T19AF4A515F3939C11E567567364E051E791092CC2E858833DEBB3BAA318EA3805F5CBEE
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
197
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV#409.xlsx
Verdict:
Malicious activity
Analysis date:
2021-10-13 08:58:46 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/1519a868-e1e5-4fc3-87d4-dab28a1d9141

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/197169/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.22480.11932.5281.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6166aaa09fb4d8593d6376ee/reports/482ae9b2-2639-4867-b907-d85c284d33fe/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8521c1d0-e12d-4f04-80ae-dc27e2050078
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/869483
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 501912 Sample: FziMjk77sV.exe Startdate: 13/10/2021 Architecture: WINDOWS Score: 100 39 www.myteepathfinder.com 2->39 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 4 other signatures 2->49 11 FziMjk77sV.exe 6 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\Local\Temp\tmp823.tmp, XML 11->33 dropped 35 C:\Users\user\AppData\...\FziMjk77sV.exe.log, ASCII 11->35 dropped 37 C:\Users\user\AppData\...37UBPFhaQFiQqDs.exe, PE32 11->37 dropped 61 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->61 63 Uses schtasks.exe or at.exe to add and modify task schedules 11->63 65 Tries to detect virtualization through RDTSC time measurements 11->65 67 Injects a PE file into a foreign processes 11->67 15 FziMjk77sV.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 Queues an APC in another process (thread injection) 15->75 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 41 www.right-effort.com 20->41 51 System process connects to network (likely due to code injection or exploit) 20->51 26 WWAHost.exe 20->26         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 26->53 55 Modifies the context of a thread in another process (thread injection) 26->55 57 Maps a DLL or memory area into another process 26->57 59 Tries to detect virtualization through RDTSC time measurements 26->59 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/7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-13 09:50:07 UTC
AV detection:
24 of 27 (88.89%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4bd4b9f79c629ce5f602b3cc8bacefb6c3779498d66b946be9da734111659f23
Formbook
638394ba0aa51689488ddd944d4b358f02fde988c65842110bdc089e04e9f138
Formbook
a2d7a6453efd6b8c31af2e225ae7f93064d44fe328b5bb2e530d820e5e6ca5f8
Formbook
c63cb761da677849b8382eb1d926569f00a04d57f2c789b63e7f2eb2e368a00c
Formbook
db4d5bd36f923fdd47daf48ace971f47e9764d27a2f88241f09c754c042efc28
Formbook
eca9be257354d26e49e1b03d1b8d42228cf66b5ee1b1236afad3c348da43c48b
Formbook
f136f4f9c59c4ff2582063222c6df106a3d1e3d7d9220ff73e3cb2ec487fe1db
Formbook
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
Formbook
fedeb19031bcc0941b0943dd3ed45ee6095b8c489c072c85e513b414abf8acf5
Formbook
ff64ff314c7947e5faae8181ac818b124a6d17d0fc3a66e8777a78a613d6093c
Formbook
+ 9'986 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hs3h evasion rat spyware stealer trojan
Link:
https://tria.ge/reports/211013-lq26sadfhn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
Malware Config
C2 Extraction:
http://www.alefisrael.com/hs3h/
Unpacked files
SH256 hash:
3fdc3e95250a85b401fd290a36949ab2b65a68e87f14840cee11298563277cac
MD5 hash:
25a22d0c20252efdee71059d52299e60
SHA1 hash:
e8fe27788212e6154332bc769e00b13f6653b322
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d315ef6c-da00-46e6-bc5d-8093d2d2daec/
Parent samples :
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab
7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348
4e25735dc713c78458f181caa0f09a6ea2ca79a708a3b22f52d1c936806de251
63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2
SH256 hash:
1c0520b8fa2c9ec1fd1e3d9402af69f46a5545661e34391fa90fd74f1a7a5bea
MD5 hash:
44c0f176df13640ee7404f5c5aa831f3
SHA1 hash:
f53236d37b7e498f43d742e0f93163973f70c60a
Link:
https://www.unpac.me/results/d315ef6c-da00-46e6-bc5d-8093d2d2daec/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/d315ef6c-da00-46e6-bc5d-8093d2d2daec/
SH256 hash:
83050f29c79820bfc91b484b0eb98a55eefe6f8cd6179e6593029c1de4690b22
MD5 hash:
37ccc6e15e1926aaf6eadd54f7a672bb
SHA1 hash:
40e7b64e0d062691c234f93b2a737de9bf0b86ce
Link:
https://www.unpac.me/results/d315ef6c-da00-46e6-bc5d-8093d2d2daec/
SH256 hash:
7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
MD5 hash:
7f44706f1c5ed5d723262bfa03b5500e
SHA1 hash:
2c8b87e78b625e5436a559e92ffffaf4d7d5f3f9
Link:
https://www.unpac.me/results/d315ef6c-da00-46e6-bc5d-8093d2d2daec/
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/7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10

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.

Web download

Formbook

Executable exe 7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/197169/
  
URLhaus
https://urlhaus.abuse.ch/url/1673404/
  
Delivery method
Distributed via web download

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