MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb5df98c2c7bc29973d2f2eeb67ce8b7a2f9da4166fabe5dfd70e5117e404991. 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: 18


Intelligence 18 IOCs YARA 1 File information Comments
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SHA256 hash: bb5df98c2c7bc29973d2f2eeb67ce8b7a2f9da4166fabe5dfd70e5117e404991
SHA3-384 hash: c63a3fb60be73fc66c472347c9df5e8b4d83bbf6eac5386cc0ebc6f3e46298432c7d865a7f222470de51dcb32316d25d
SHA1 hash: 2bf40bf5d0686a30f1d1f2d90d804452a8bc331e
MD5 hash: 52b029dfcfa4424579619a9c6b0f0f21
humanhash: november-cola-salami-november
File name:roror99043.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:244'416 bytes
First seen:2023-06-29 14:08:50 UTC
Last seen:2023-06-29 14:38:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 6144:/Ya61iSHTK2jyvR6ouixU5NVn6T9sqWdmAiC:/YniSHTtjy56obxKNVnsmBdmI
Threatray 2'983 similar samples on MalwareBazaar
TLSH T1E1341228B7F1D05BEDB317321E7655277DA7F91A9538A70B2300AB8CF9B01819E0E761
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 malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
312
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
roror99043.exe
Verdict:
Malicious activity
Analysis date:
2023-06-29 14:09:21 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/b8e06a97-1183-433e-885b-44d57bc16af2

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/403797/
Detection(s):
SecuriteInfo.com.Variant.Tedy.391406.23594.31231.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/94143/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/649d907ee1b9083ea6dbdeb6/reports/1feacb63-4e6b-4a83-b3af-9d45020736a8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/bb5df98c2c7bc29973d2f2eeb67ce8b7a2f9da4166fabe5dfd70e5117e404991
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/9006110c-fa55-4699-ac1e-e84cf93ef80c
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1263315
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
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: 896345 Sample: roror99043.exe Startdate: 29/06/2023 Architecture: WINDOWS Score: 100 33 www.yhtiye.com 2->33 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 6 other signatures 2->47 11 roror99043.exe 19 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\dlfcgin.dll, PE32 11->31 dropped 57 Detected unpacking (changes PE section rights) 11->57 59 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 11->59 61 Maps a DLL or memory area into another process 11->61 63 Tries to detect virtualization through RDTSC time measurements 11->63 15 roror99043.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 2 1 15->18 injected process9 dnsIp10 35 teleportoverseas.com 76.223.105.230, 49697, 80 AMAZON-02US United States 18->35 37 www.teleportoverseas.com 18->37 39 4 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 raserver.exe 18->22         started        25 autochk.exe 18->25         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/bb5df98c2c7bc29973d2f2eeb67ce8b7a2f9da4166fabe5dfd70e5117e404991/
Threat name:
Win32.Ransomware.FormBook
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Status:
Malicious
First seen:
2023-06-29 14:09:05 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xno7tdbmppbjs46s6lxlm7hiw6rptwsbm35l4xp5odsrc7sajgiq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2e1feacb6a3980b6fe801af73c3eb68a60295d75e7a72fd0948091ba34a8d7d7
Formbook
4431648599d5c8d9ed6324d5cfaccf83daaecf91b9637b1cf308b8004ca43757
Formbook
6147af8263840617beb21652bb8db0fc7683a9e62a084254e548a884c8fa9a31
Formbook
73ce02f6b7c4c5109af4ad501aa9206bbfa5cf32bb8276ad06887c95279c907d
Formbook
7f8d1823d07c98a5ea6e9d2848faf940231df09568b4fee525f18ea59d6094bc
Formbook
99ec8b8e93e7a91dab1a16b9353333fa340d52569de4b88f5703bbc5a666211c
Formbook
a1a882d7abefdec8678649330339a2f080a777450da1be5110b88e81a8ea38cc
Formbook
a83adc88feb896f4fa1b09b3d5043fd506f9de5f6d695f7e18bb3d84019abb85
Formbook
aee5d1b7326545ff692b98743e04d035e01415300fea8a5bf445d3490d6776cc
Formbook
b818f5a62ced3a731fa73968051a1017aee199a324fe740c7bb14c488d1a670f
Formbook
+ 2'973 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:t30k rat spyware stealer trojan
Link:
https://tria.ge/reports/230629-rf4vhsea8v/
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
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
bb5df98c2c7bc29973d2f2eeb67ce8b7a2f9da4166fabe5dfd70e5117e404991
MD5 hash:
52b029dfcfa4424579619a9c6b0f0f21
SHA1 hash:
2bf40bf5d0686a30f1d1f2d90d804452a8bc331e
Link:
https://www.unpac.me/results/f8ae4840-c64f-470d-8971-2881109d8596/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bb5df98c2c7b/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/bb5df98c2c7bc29973d2f2eeb67ce8b7a2f9da4166fabe5dfd70e5117e404991

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

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/403797/

Comments