MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8f987a5099e1a1a220893763f00bcff9d84ed2dd49cb4a0ab8f5c595281e5ac. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8f987a5099e1a1a220893763f00bcff9d84ed2dd49cb4a0ab8f5c595281e5ac
SHA3-384 hash: 16599cb0bcb2eebe50bdbb40581f477453320f4258ba7614391e4e9712d95ac5a300851ef083133096f632f931429cbd
SHA1 hash: 43bb970f69404ff4c01427b99cfb669a4575d0cd
MD5 hash: 7729900697d95c9cb6d5bd73888cf13b
humanhash: white-princess-maryland-robin
File name:90lh34776t.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:227'142 bytes
First seen:2021-06-23 12:43:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:wBlL/LrAY7sjzeUc1/8Lan+V6KqjWw04DzlBX:Cp/g/2bna6Kn4nlh
Threatray 5'957 similar samples on MalwareBazaar
TLSH 0E24126672E0C4FBD5D309B268FAE769D3B1489D1800E28F0770EF7A35983D6679A107
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
90lh34776t.exe
Verdict:
Malicious activity
Analysis date:
2021-06-23 12:46:23 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/30aefddd-67a7-407c-b1a4-6868bd72fb84

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/167808/
Detection(s):
SecuriteInfo.com..5573.16641.UNOFFICIAL
Create hunting rule

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/40e7fd31-5c03-4e37-ba24-f493debbeb0f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/806569
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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)
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: 438978 Sample: 90lh34776t.exe Startdate: 23/06/2021 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->34 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 4 other signatures 2->40 8 90lh34776t.exe 19 2->8         started        12 explorer.exe 2->12         started        process3 dnsIp4 24 C:\Users\user\AppData\Local\...\uggyextsegp, DOS 8->24 dropped 26 C:\Users\user\AppData\Local\...\System.dll, PE32 8->26 dropped 42 Detected unpacking (changes PE section rights) 8->42 44 Maps a DLL or memory area into another process 8->44 46 Tries to detect virtualization through RDTSC time measurements 8->46 15 90lh34776t.exe 8->15         started        28 www.anelimplus.com 194.67.90.216, 49747, 80 AS-REGRU Russian Federation 12->28 30 ansilsas.com 162.55.82.38, 49753, 80 ACPCA United States 12->30 32 2 other IPs or domains 12->32 48 System process connects to network (likely due to code injection or exploit) 12->48 18 explorer.exe 12->18         started        file5 signatures6 process7 signatures8 50 Modifies the context of a thread in another process (thread injection) 15->50 52 Maps a DLL or memory area into another process 15->52 54 Sample uses process hollowing technique 15->54 56 Queues an APC in another process (thread injection) 15->56 58 Tries to detect virtualization through RDTSC time measurements 18->58 20 cmd.exe 1 18->20         started        process9 process10 22 conhost.exe 20->22         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8f987a5099e1a1a220893763f00bcff9d84ed2dd49cb4a0ab8f5c595281e5ac/
Threat name:
Win32.Infostealer.Stelega
Create hunting rule
Status:
Malicious
First seen:
2021-06-23 12:25:44 UTC
AV detection:
14 of 45 (31.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd4ypjijtynbuiqisn3d6af476oyj3jn2soljiflr5ofsuub4wwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
25644ff35da89545c702b633182c4ff1f649dd64c9c8249be9afe7090359d87d
Formbook
66e06710b095c687448e0b08240a99f84dfbfc24882a2c8c9f5b165f58469d8f
Formbook
6c8b4de0f39caa11127409b3ee06f410b0c5642b840f10822ad40af5745690cb
Formbook
744400d590042d779a25401879f9906b979e32bba3fac355a0ff2d5a00f4fcfc
Formbook
78b11874a66b80ec78962b27c352a643d1a11c7f5cf9273f0db06df3f4f7e76c
Formbook
ae5df8905dd1b9de509e6764dea4c5571916b1705a129bddf2f5e2e554552acb
Formbook
af2f2ca290589cc5582a0da252931b616dc62a88f53a9f9e00e9663b3ea2548a
Formbook
bdc84c917558fe1a4055309a8d6ad6d89d2cdf5a6741c218ace44f70489f9260
Formbook
d869fa27fd5d5a229609f218572f1625820cb8176ba6c1616714e40d4e6b7897
Formbook
facc651f7697bb357b528e0fdcbfcb0601abcaad0f2bd31eee54792aa8ee66e3
Formbook
+ 5'947 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210623-5q7vnfxbcs/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.bulverderoofing.com/lt0h/
Unpacked files
SH256 hash:
4b0125cd7049dba92a565c874848edee6e6be3f6b32b6a934d9fec5cbd5e4099
MD5 hash:
dee8ae3d305808bd6a1f9fccd12db26a
SHA1 hash:
9112ec525f595e2dc0fff0bb39b7653cc689c028
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/92b55c30-3c71-4132-924e-5676732c2447/
Parent samples :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 hash:
bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1
MD5 hash:
56a321bd011112ec5d8a32b2f6fd3231
SHA1 hash:
df20e3a35a1636de64df5290ae5e4e7572447f78
Link:
https://www.unpac.me/results/92b55c30-3c71-4132-924e-5676732c2447/
SH256 hash:
b8f987a5099e1a1a220893763f00bcff9d84ed2dd49cb4a0ab8f5c595281e5ac
MD5 hash:
7729900697d95c9cb6d5bd73888cf13b
SHA1 hash:
43bb970f69404ff4c01427b99cfb669a4575d0cd
Link:
https://www.unpac.me/results/92b55c30-3c71-4132-924e-5676732c2447/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/b8f987a5099e1a1a220893763f00bcff9d84ed2dd49cb4a0ab8f5c595281e5ac

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

Executable exe b8f987a5099e1a1a220893763f00bcff9d84ed2dd49cb4a0ab8f5c595281e5ac

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/167808/

Comments