MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d. 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: 16


Intelligence 16 IOCs YARA 12 File information Comments
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SHA256 hash: c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d
SHA3-384 hash: 22928e2f40ebba7587ae1247e4cb6e338210d6a975a3931ae1bdd86aafa9255eb2b056e989e4421366f30c59a6b9f93e
SHA1 hash: 5993fc705ca80b6c3075a170c137ece6bd45b1b5
MD5 hash: d76bd49e112894dff0015036780536e4
humanhash: charlie-kentucky-twenty-angel
File name:SSS.exe
Download: download sample
Signature Formbook
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File size:394'978 bytes
First seen:2023-12-12 07:33:48 UTC
Last seen:2023-12-12 09:20:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 12288:B96e8x8EYJFSCCpQ8vukJjLIcc6E8+YfzGqOAh:B9VL/189y8+eGJAh
TLSH T145842356A3D15AF7F65F4B742F76EFA8F26BC2000026AA4BC3608F175AF0502785CA57
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
337
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/466324/
Detection(s):
SecuriteInfo.com.Variant.Jaik.195228.9368.31685.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
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
Sending a custom TCP request
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
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/65780cea3636548f374c1d5f/reports/156b48ef-0413-4e01-8ccc-de7720076343/overview
Verdict:
Malicious
Labled as:
Jaik.Generic
Link:
https://www.hybrid-analysis.com/sample/c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c0cade3c-744d-4f37-bd27-8442909e6d07
Result
Threat name:
FormBook, NSISDropper
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1359782
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
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
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1359782 Sample: SSS.exe Startdate: 12/12/2023 Architecture: WINDOWS Score: 100 33 www.wne-coinbase.com 2->33 35 www.teachertransitionjobboard.com 2->35 37 9 other IPs or domains 2->37 53 Snort IDS alert for network traffic 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 6 other signatures 2->59 12 SSS.exe 17 2->12         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\ihuhcntsa.exe, PE32 12->31 dropped 15 ihuhcntsa.exe 12->15         started        process6 signatures7 67 Antivirus detection for dropped file 15->67 69 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Tries to detect virtualization through RDTSC time measurements 15->73 18 ihuhcntsa.exe 15->18         started        process8 signatures9 45 Modifies the context of a thread in another process (thread injection) 18->45 47 Maps a DLL or memory area into another process 18->47 49 Sample uses process hollowing technique 18->49 51 Queues an APC in another process (thread injection) 18->51 21 explorer.exe 9 1 18->21 injected process10 dnsIp11 39 www.megq.store 91.195.240.117, 49705, 80 SEDO-ASDE Germany 21->39 41 www.jordenshoots.com 151.101.64.119, 49703, 80 FASTLYUS United States 21->41 43 4 other IPs or domains 21->43 24 cscript.exe 21->24         started        process12 signatures13 61 Modifies the context of a thread in another process (thread injection) 24->61 63 Maps a DLL or memory area into another process 24->63 65 Tries to detect virtualization through RDTSC time measurements 24->65 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d/
Threat name:
Win32.Trojan.Guloader
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Status:
Malicious
First seen:
2023-12-11 11:44:28 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdkzxdnirf6hgrif4zde3jmu5t6hixfb5yakrugfgzsgxlxc7bgq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:uh23 rat spyware stealer trojan
Link:
https://tria.ge/reports/231212-jd4sqshabm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
692e04be13ed65ac3644f244585cd4f2a96453beb71095a3f3e99b03e3733c69
MD5 hash:
59e894fc4208d84dfe99740f40f15a6a
SHA1 hash:
00645401d717ec67f0f3edae06c0ff41c48e187b
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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Formbook
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Link:
https://www.unpac.me/results/3cd3c456-05a1-4a45-8bf1-84db8c4b97f4/
Parent samples :
e6ad0e54bdd3ceb24a7139747c35bb9e9b2d5a8208b677562b87be8745033d7d
10883d2d817a21862f9068a7fbaae0d363e16e64d291a291925ba002e761eff6
33ff334a0bf2e8a1e899ff47a87edf30e6e8ebf05ce6fc5a1d6e7a7b5bd672df
cc3e1fee438ef0fe104afcc8ac66f930074302f67f1b99995b2d526575ddc098
58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689
c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d
9d833b4a66beca22dcee2a030ffa0ff1a9c72eba3f9ee50eb412f56806915f87
SH256 hash:
cd88e83148181ffe5592a5f0533b994b55de4328a424ef52dfb3822f8ba49050
MD5 hash:
990c295a3e43cb30d5179e863f7ca9d0
SHA1 hash:
5933fd766a85113d22a9b369279fa4ce99640efc
Link:
https://www.unpac.me/results/3cd3c456-05a1-4a45-8bf1-84db8c4b97f4/
SH256 hash:
c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d
MD5 hash:
d76bd49e112894dff0015036780536e4
SHA1 hash:
5993fc705ca80b6c3075a170c137ece6bd45b1b5
Link:
https://www.unpac.me/results/3cd3c456-05a1-4a45-8bf1-84db8c4b97f4/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8d59b8da889/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/c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d

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:DebuggerCheck__GlobalFlags
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
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Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants

File information

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

Malspam

Formbook

Executable exe c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/466324/

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