MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 890f77a5e151d7e87c3a0a953f471fb964e00644b798f37b566100d61b5f35ee. 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: 14


Intelligence 14 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 890f77a5e151d7e87c3a0a953f471fb964e00644b798f37b566100d61b5f35ee
SHA3-384 hash: 4dffed73fb8111a384acd9d97464114abc45d691650901c62957ce7f2209204c407eabe17509797a594aaafed510d1b9
SHA1 hash: 7749b8248b8da350dffa42d06763ffe5ecd5068b
MD5 hash: eb9d6d2df1cbcca4f5d82c2832a7c0a1
humanhash: tennessee-april-idaho-low
File name:e-dekont.html.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:218'532 bytes
First seen:2022-12-06 14:17:54 UTC
Last seen:2022-12-06 15:38:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ab6770b0a8635b9d92a5838920cfe770 (84 x Formbook, 30 x AgentTesla, 15 x Loki)
ssdeep 6144:QBn1tLOFNRnx6BSe8GtF9XMuXOPNjNu/C:gYyBSLGtXXMuXR6
TLSH T1C324126A61F18477FA230B3509FBEBA0E7B6E10E006580171BA19F3A5E741D3C95E693
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
e-dekont.html.exe
Verdict:
Malicious activity
Analysis date:
2022-12-06 14:22:54 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/28fe1ed5-7009-4e64-b4b0-9c0e9689df48

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/343490/
Detection(s):
SecuriteInfo.com.FileRepMalware.22256.30385.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/638f4f1df6e448d42df76c16/reports/39187f46-209a-4b54-b1a0-e26ff3fd68ac/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/64bf4bd9-2e0e-4927-a9bd-79d9c002fb34
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1129073
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in 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 dropped file
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 761803 Sample: e-dekont.html.exe Startdate: 06/12/2022 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 6 other signatures 2->53 11 e-dekont.html.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\guxhskl.exe, PE32 11->31 dropped 14 guxhskl.exe 11->14         started        process5 signatures6 63 Antivirus detection for dropped file 14->63 65 Multi AV Scanner detection for dropped file 14->65 67 Maps a DLL or memory area into another process 14->67 69 Tries to detect virtualization through RDTSC time measurements 14->69 17 guxhskl.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 17->20 injected process9 dnsIp10 33 www.247plumbers.monster 104.21.64.8, 49713, 80 CLOUDFLARENETUS United States 20->33 35 www.luispenas.com 20->35 37 2 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 colorcpl.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/890f77a5e151d7e87c3a0a953f471fb964e00644b798f37b566100d61b5f35ee/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-12-06 09:52:31 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rehxpjpbkhl6q7b2bkkt6ry7xfsoabsew6mpg62wmeanmg27gxxa._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:mi08 rat spyware stealer trojan
Link:
https://tria.ge/reports/221206-rma6saef56/
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 WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Unpacked files
SH256 hash:
c4c9f9d286ad46b6c7f7be6711e318e27072b15c696b551e70df151d9b195ff4
MD5 hash:
48c9492553b135fa7ab0a7388c333733
SHA1 hash:
20732133e288acfa9cab07c9639dcac9a870fa47
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/0e175d2f-34ba-467b-8648-5b000778cdf0/
Parent samples :
5a7945535c443873fa9822dea1d9b22987cf6abd43c2ebb12900b18d0f956d5e
5f12d75282af46d76785401c4e69c2f2cf3bc35281d337ce541ddc0e0f6f1725
44e3ed577325d16ea39deebd178c78d4022d21120a791f4c875c537fe60be2e1
b8024e250ead416a33d4ef90f4fafe7e2dfbd27e6028302b80896905fad4ac9a
890f77a5e151d7e87c3a0a953f471fb964e00644b798f37b566100d61b5f35ee
6e8de74475e365bdd0f573a03266f447a13f30a76cc2c71d14c1fc5607e1ae5d
bca421b3a0733bed5bb998a6fd9aac04e11cb6ef6136edc630e87d8494d52a83
834e38634cf12e2c06e51b06b8352e03097d29755a3e9510604a29d9940a9d49
SH256 hash:
3e35e08a982420d10e16b590adc27275601592cd3f6f87175319ebc779c04850
MD5 hash:
f1e70dba67b5ff7923d7bf4890ae02f0
SHA1 hash:
bfb2e22d97e862c2bd6c6def2f696e8d05d2c363
Link:
https://www.unpac.me/results/0e175d2f-34ba-467b-8648-5b000778cdf0/
SH256 hash:
890f77a5e151d7e87c3a0a953f471fb964e00644b798f37b566100d61b5f35ee
MD5 hash:
eb9d6d2df1cbcca4f5d82c2832a7c0a1
SHA1 hash:
7749b8248b8da350dffa42d06763ffe5ecd5068b
Link:
https://www.unpac.me/results/0e175d2f-34ba-467b-8648-5b000778cdf0/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/890f77a5e151/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/890f77a5e151d7e87c3a0a953f471fb964e00644b798f37b566100d61b5f35ee

File information

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

Malspam

Formbook

Executable exe 890f77a5e151d7e87c3a0a953f471fb964e00644b798f37b566100d61b5f35ee

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/343490/

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