MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27c63a287ad06d5478a22155790f4d89221885d140405b2f200242955154973a. 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 16 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27c63a287ad06d5478a22155790f4d89221885d140405b2f200242955154973a
SHA3-384 hash: d868f6b193cbca79eb8c45576aed3ea19da78b94a923896884aa091a136d368f393b090675ba4eb8f1ac9585019740dc
SHA1 hash: acb507738efe72f7d24942f5b368871adc1d1e34
MD5 hash: 44467cb97748f78289cca59f5ad2cc3a
humanhash: hydrogen-burger-bravo-high
File name:44467cb97748f78289cca59f5ad2cc3a
Download: download sample
Signature Formbook
Create hunting rule
File size:336'001 bytes
First seen:2023-09-29 11:30:36 UTC
Last seen:2023-09-29 12:37:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9dda1a1d1f8a1d13ae0297b47046b26e (64 x Formbook, 40 x GuLoader, 25 x RemcosRAT)
ssdeep 6144:LnPdudwDz55TyuCDiWvsXSAcXXfSpZpmCIzAiwzbLXTIWf/ewHgKyRm6s:LnPdv55T6fvPAq8ZoCEADTXTIY2XRk
Threatray 2'174 similar samples on MalwareBazaar
TLSH T1D36412A07365C07BDD7B6A310D3FDB674BB7586A41B0670753C17AAEBDA3682C4092C2
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 d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
280
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SWIFT_4939459845845.xls
Verdict:
Malicious activity
Analysis date:
2023-09-29 10:33:31 UTC
Tags:
opendir exploit cve-2017-11882 loader formbook xloader
Link:
https://app.any.run/tasks/c59e1d83-48b3-4e1a-86fe-381f06c68c77

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/451934/
Detection(s):
SecuriteInfo.com.Trojan.Garf.Gen.7.31997.16426.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Sending a custom TCP request
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
Gathering data
Verdict:
Likely Malicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6516b57932ffdb7a7a18d157/reports/76b495f5-0bfb-4df8-a2b7-1e4b41e6e107/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/27c63a287ad06d5478a22155790f4d89221885d140405b2f200242955154973a
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/6cef948c-f108-4aaa-b3fc-c933f9c3d83b
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1316464
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 domain / URL
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
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1316464 Sample: bmI3WSCMC8.exe Startdate: 29/09/2023 Architecture: WINDOWS Score: 100 54 Snort IDS alert for network traffic 2->54 56 Multi AV Scanner detection for domain / URL 2->56 58 Found malware configuration 2->58 60 9 other signatures 2->60 11 bmI3WSCMC8.exe 18 2->11         started        process3 file4 32 C:\Users\user\AppData\Local\Temp\jfgcns.exe, PE32 11->32 dropped 14 jfgcns.exe 11->14         started        process5 signatures6 72 Antivirus detection for dropped file 14->72 74 Multi AV Scanner detection for dropped file 14->74 76 Maps a DLL or memory area into another process 14->76 78 Tries to detect virtualization through RDTSC time measurements 14->78 17 jfgcns.exe 14->17         started        process7 signatures8 46 Modifies the context of a thread in another process (thread injection) 17->46 48 Maps a DLL or memory area into another process 17->48 50 Sample uses process hollowing technique 17->50 52 Queues an APC in another process (thread injection) 17->52 20 explorer.exe 2 1 17->20 injected process9 dnsIp10 34 b2b-scaling.com 15.197.142.173, 49808, 80 TANDEMUS United States 20->34 36 www.apneabirmingham.info 109.68.33.25, 49812, 80 GD-EMEA-DC-LD5GB United Kingdom 20->36 38 15 other IPs or domains 20->38 62 System process connects to network (likely due to code injection or exploit) 20->62 24 msdt.exe 12 20->24         started        signatures11 process12 dnsIp13 40 www.hrmbrillianz.com 24->40 42 www.giallozafferrano.com 24->42 44 2 other IPs or domains 24->44 64 Modifies the context of a thread in another process (thread injection) 24->64 66 Maps a DLL or memory area into another process 24->66 68 Tries to detect virtualization through RDTSC time measurements 24->68 28 cmd.exe 1 24->28         started        signatures14 70 System process connects to network (likely due to code injection or exploit) 42->70 process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/27c63a287ad06d5478a22155790f4d89221885d140405b2f200242955154973a/
Threat name:
Win32.Trojan.Garf
Create hunting rule
Status:
Malicious
First seen:
2023-09-29 10:19:29 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e7ddukd22bwvi6fcefkxsd2nrerbrboribafwlzaajbjkukus45a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1575cbe53742e3339cfd530c0599d1868a41dbca3705fd7ded32302fcdf6ed26
Formbook
1a4a833905ed2b06f990054eee77c7f92d536d52797c6a18de6d1358e25e8e03
Formbook
3657bbc56c6f5a8bc8326ee2eb13f384bd89697fa29175436a28601b47f945ce
Formbook
85176443ab1c87d4387378979a276b860b6306e6ae17749d0a1072111cc14a1b
Formbook
ab81345f141fa4d777d142a4f8367c53e9840897bc2b4c3299a4f6696a46296d
Formbook
acdf8d88a30518cf72ff6b37e7610fa5774d657da25ff500e8a76390e56fe103
Formbook
b2d76e91d736201b7e8fb9780594693cfc3106285a4886e9b40007fdd7e56359
Formbook
e3643d141c0e87b3304f3b015f1e8dbbbe273e9a8bb93906991fe61a3073f891
Formbook
ecd04804617988e39d5f075e021f6403a33b688ef388f75b897e4c4f7e21e466
Formbook
+ 2'164 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sy22 rat spyware stealer trojan
Link:
https://tria.ge/reports/230929-nmra8aab4s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
8ec81f033f078c9ee65519e505e17fa463dec8ab027ba7074448f39e0271fba3
MD5 hash:
4bfb7e992270590a82374774d486932b
SHA1 hash:
68400b3fc846f3e5286f6d640df34706a28946fa
Link:
https://www.unpac.me/results/5c452cb3-1a32-469f-8341-9d6f1ebd701a/
SH256 hash:
27c63a287ad06d5478a22155790f4d89221885d140405b2f200242955154973a
MD5 hash:
44467cb97748f78289cca59f5ad2cc3a
SHA1 hash:
acb507738efe72f7d24942f5b368871adc1d1e34
Link:
https://www.unpac.me/results/5c452cb3-1a32-469f-8341-9d6f1ebd701a/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/27c63a287ad0/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/27c63a287ad06d5478a22155790f4d89221885d140405b2f200242955154973a

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
Create hunting rule
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
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Web download

Formbook

Executable exe 27c63a287ad06d5478a22155790f4d89221885d140405b2f200242955154973a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2714999/
Cape
Cape
https://www.capesandbox.com/analysis/451934/

Comments


Avatar
zbet commented on 2023-09-29 11:30:38 UTC

url : hxxp://107.172.75.146/200/audiodg.exe