MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7149b1dc6fb8e0516e7f43b05cc0f452f078db558dd3be0ab066ab13f19c7e86. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7149b1dc6fb8e0516e7f43b05cc0f452f078db558dd3be0ab066ab13f19c7e86
SHA3-384 hash: 2b94a3dccd0d706a63af1ba4c3d4d20964ee6e9ae57504b0fd2836d9c96a426f01db9977b4b6ed846802be28258a4a64
SHA1 hash: f184564cd54bde11f97fbcd58df4e6487737aee3
MD5 hash: 302f2eb940ca97b21128171b43cf20b7
humanhash: diet-table-vermont-xray
File name:win88.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'348'608 bytes
First seen:2021-08-03 03:54:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:wISD76DOQfx8Dgyfx8DgaSfSAtH/BOG5J0onMsTrr00YNwDZEfL:CD76p58Dgy58Dgj6O/UG5J0ETrwFCZ0
Threatray 6'584 similar samples on MalwareBazaar
TLSH T1BD55E09E7940EABBD61C13B55114D48043B99814D227FBEF7EA222B237E1A794F24CF1
dhash icon b271e8e4d4ccf070 (22 x AgentTesla, 14 x Formbook, 11 x SnakeKeylogger)
Reporter ankit_anubhav
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
186
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
win88.exe
Verdict:
Malicious activity
Analysis date:
2021-08-03 03:56:05 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/0deea5b5-1308-4db3-9cfa-a133c61929a0

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/175910/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.DLO-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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/c0b4a302-f6f0-475d-9ebe-665c12aff2e5
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/825834
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 458246 Sample: win88.exe Startdate: 03/08/2021 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 6 other signatures 2->48 9 win88.exe 3 2->9         started        process3 file4 26 C:\Users\user\AppData\Local\...\win88.exe.log, ASCII 9->26 dropped 50 Tries to detect virtualization through RDTSC time measurements 9->50 13 win88.exe 9->13         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 13->52 54 Maps a DLL or memory area into another process 13->54 56 Sample uses process hollowing technique 13->56 58 Queues an APC in another process (thread injection) 13->58 16 cmd.exe 13->16         started        19 explorer.exe 13->19 injected process8 dnsIp9 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 Tries to detect virtualization through RDTSC time measurements 16->38 22 cmd.exe 1 16->22         started        28 www.pickleballpainmanagement.com 19->28 30 www.grasipy.com 19->30 32 2 other IPs or domains 19->32 40 System process connects to network (likely due to code injection or exploit) 19->40 signatures10 process11 process12 24 conhost.exe 22->24         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7149b1dc6fb8e0516e7f43b05cc0f452f078db558dd3be0ab066ab13f19c7e86/
Threat name:
ByteCode-MSIL.Trojan.AgenteslaPacker
Create hunting rule
Status:
Malicious
First seen:
2021-08-02 12:41:11 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ofe3dxdpxdqfc3t7ioyfzqhuklyhrw2vrxj34cvqm2vrh4m4p2da._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4fe5115259b2c032f03275273349549ab896959c818d771a4ad755ce64866379
Formbook
5d4c17f9ea28e3df3efa9d9c7ba40444abeee049fe999eb2d579c6cf4ccc3231
Formbook
93d053f43313cccae2d3f9d00b4556429a63efb104b97e08967da8569fa2ff82
Formbook
a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051
Formbook
b93e489f88aa4b4e93dafa16bd6f86956568d7b96574aaf768fd755f9c839db3
Formbook
c69e54b704c7d7e94faa9c3ea2519eef344e1099aa99271833bc56cae00ab8af
Formbook
db59f359b1391841761f1eb6924a49ac7d39fce5033f9048b8be2c6b74734f3c
Formbook
dd44eb26a328f1e86823339666e1b1237ad7b1d880694c1b8fb8164b931aa512
Formbook
e5561555b0be45246e4ce5418a203d5a0d800595de770d772d0d86d0ed2662bb
Formbook
+ 6'574 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210803-4ljxdtap2a/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.bookkeeping32.com/p6ai/
Unpacked files
SH256 hash:
32be150a050a1b8598455b6db794c2f56bdfb998c759501df5ded3a67fe88d03
MD5 hash:
93978002bb2f119aef04178c435b0137
SHA1 hash:
e47da20db7083286e29c16d9e35dcb620e23b29b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/561bbf4b-a32e-4e5d-aa5e-67f19b613b14/
Parent samples :
b93e489f88aa4b4e93dafa16bd6f86956568d7b96574aaf768fd755f9c839db3
db59f359b1391841761f1eb6924a49ac7d39fce5033f9048b8be2c6b74734f3c
7149b1dc6fb8e0516e7f43b05cc0f452f078db558dd3be0ab066ab13f19c7e86
a3b2dbaf4684b38ff966a244069a73505cb8137efe19b95afd63f7a6029060cb
32be150a050a1b8598455b6db794c2f56bdfb998c759501df5ded3a67fe88d03
4cc65796b96504f7436452abb5337d83927568039b02e670b8997e92770d8c98
SH256 hash:
90a0d680362901307e6bb80df29dae8fba8c6b3831812758c6f2f2ce8b1588e2
MD5 hash:
8e5b7cbfecc0efd6be17411c9750197a
SHA1 hash:
a41599ab165423e54c3872ce19e795730c7dea1f
Link:
https://www.unpac.me/results/561bbf4b-a32e-4e5d-aa5e-67f19b613b14/
SH256 hash:
cfef97ff706312dff4edd998aeee22f1283221631ebb0cc954bebbb701c1465c
MD5 hash:
a0f625a3d3348903f3c902f588c0e4f5
SHA1 hash:
20d1f0b74abe6f500e8c21119f55281926210ac0
Link:
https://www.unpac.me/results/561bbf4b-a32e-4e5d-aa5e-67f19b613b14/
SH256 hash:
7149b1dc6fb8e0516e7f43b05cc0f452f078db558dd3be0ab066ab13f19c7e86
MD5 hash:
302f2eb940ca97b21128171b43cf20b7
SHA1 hash:
f184564cd54bde11f97fbcd58df4e6487737aee3
Link:
https://www.unpac.me/results/561bbf4b-a32e-4e5d-aa5e-67f19b613b14/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/7149b1dc6fb8e0516e7f43b05cc0f452f078db558dd3be0ab066ab13f19c7e86

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:quakbot_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:silentbuilder_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
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.

Cape
Cape
https://www.capesandbox.com/analysis/175910/

Comments