MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8cfdcbcbb0b67c66ebb1c3a4cfb995424a9dc791c13d8df53cea06bcd8c2afef. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: 8cfdcbcbb0b67c66ebb1c3a4cfb995424a9dc791c13d8df53cea06bcd8c2afef
SHA3-384 hash: eaa55933dac459293048922ae2a021d529fb7d3ef8d1f77956dfe0e0438a29ed737e78b2dd1abb46f476448603bdd8f6
SHA1 hash: c061262cf1a7999d7ee59694dd0c8bb570987e02
MD5 hash: ce411b2f7dfd407c1a546e160193b55d
humanhash: july-nineteen-angel-early
File name:Urgent quote request -pdf-.exe
Download: download sample
Signature Formbook
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File size:831'488 bytes
First seen:2022-11-28 12:26:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:h2D2DHPXsU51ZM0W52nCrgxRzrzbH3sgGJy3i9zxihIg95lvTHRyoY:Q2DPugfrzbHcFJwIohIgvpjRpY
Threatray 17'544 similar samples on MalwareBazaar
TLSH T1C3057C5872A699C9F3AF5171A2ECBBB0027234E392D9C78789959181D3C9FD60DC07CE
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
251
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Urgent quote request -pdf-.exe
Verdict:
Malicious activity
Analysis date:
2022-11-28 12:28:14 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/1d595c74-fef8-4b11-9c18-21ef942546b5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/339412/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching the process to change network settings
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6384a917090ea3f04934ba5b/reports/e5632b96-85ff-4b4c-93c9-1deb6e596c17/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5dd7cc6d-fabd-42ce-89f5-8e213ad4b9dd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1122493
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
Sigma detected: Scheduled temp file as task from temp location
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 755217 Sample: Urgent quote request -pdf-.exe Startdate: 28/11/2022 Architecture: WINDOWS Score: 100 66 Malicious sample detected (through community Yara rule) 2->66 68 Sigma detected: Scheduled temp file as task from temp location 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 10 other signatures 2->72 10 Urgent quote request -pdf-.exe 7 2->10         started        14 KLDxttbPfKRi.exe 5 2->14         started        process3 file4 46 C:\Users\user\AppData\...\KLDxttbPfKRi.exe, PE32 10->46 dropped 48 C:\Users\...\KLDxttbPfKRi.exe:Zone.Identifier, ASCII 10->48 dropped 50 C:\Users\user\AppData\Local\...\tmp3441.tmp, XML 10->50 dropped 52 C:\...\Urgent quote request -pdf-.exe.log, ASCII 10->52 dropped 80 Adds a directory exclusion to Windows Defender 10->80 82 Injects a PE file into a foreign processes 10->82 16 Urgent quote request -pdf-.exe 10->16         started        19 powershell.exe 21 10->19         started        21 schtasks.exe 1 10->21         started        84 Multi AV Scanner detection for dropped file 14->84 86 Machine Learning detection for dropped file 14->86 88 Tries to detect virtualization through RDTSC time measurements 14->88 23 KLDxttbPfKRi.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 16->58 60 Maps a DLL or memory area into another process 16->60 62 Sample uses process hollowing technique 16->62 64 Queues an APC in another process (thread injection) 16->64 27 explorer.exe 16->27 injected 31 conhost.exe 19->31         started        33 conhost.exe 21->33         started        35 conhost.exe 25->35         started        process8 dnsIp9 54 www.dunaphotography.com 154.222.125.220, 49699, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 27->54 56 www.arexbaba.online 27->56 90 System process connects to network (likely due to code injection or exploit) 27->90 37 help.exe 27->37         started        40 wlanext.exe 27->40         started        signatures10 process11 signatures12 74 Modifies the context of a thread in another process (thread injection) 37->74 76 Maps a DLL or memory area into another process 37->76 78 Tries to detect virtualization through RDTSC time measurements 37->78 42 cmd.exe 1 37->42         started        process13 process14 44 conhost.exe 42->44         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8cfdcbcbb0b67c66ebb1c3a4cfb995424a9dc791c13d8df53cea06bcd8c2afef/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2022-11-28 01:49:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rt64xs5qwz6gn25ryosm7omvijfj3r4rye6y35j45idlzwgcv7xq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
09037aa0be8db35b9e9fdebbcf4b513fc3837825d0114474ecbd396e698c5f8d
Formbook
1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242
Formbook
26c7d3b6ad20ae3c7f44462c4e01d4756ea6ef1d0ad665b806ab3f7ab6b60dba
Formbook
3a22fb14f837309023971bf41b88cfc9b3ae7d9db44da63257d36d73dbd716ad
Formbook
5868cacef685463a6d4ff4d34f487d09e844511fd4d0f22b4c7ab00a92a2818a
Formbook
6f22c078ac85a58a121a9f601bb88bbdb1664bee8845c5b66f42f1c23d13a5ef
Formbook
af950b5a12cb2f97b66be1ca4cd05b528919e25ef03c04a07d8b25af2acb501a
Formbook
bf7e149d1f9261676dcfd400ee235372b01f64302efc5be2eb053308e1203d73
Formbook
d6542847f6e753bcb676e6d891d85d88ff5a38fe7150975f53ac5863922a7667
Formbook
+ 17'534 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a24e rat spyware stealer trojan
Link:
https://tria.ge/reports/221128-pmq6wsha4v/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
1674b0f5834453e6e85351c6358e8478cf1bd92196c77f5703717c2868290565
MD5 hash:
5e07de88edf75ba07c274dd44107951f
SHA1 hash:
9606b5a5182c130c276da4a76d76f1b14336beb2
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/c15bb862-8e72-4ccf-ba18-583654b97569/
Parent samples :
26c7d3b6ad20ae3c7f44462c4e01d4756ea6ef1d0ad665b806ab3f7ab6b60dba
8cfdcbcbb0b67c66ebb1c3a4cfb995424a9dc791c13d8df53cea06bcd8c2afef
45f07d4fc57fe3ee1590d8e3f82bf0cab7dfd4ed7a69702b3af062b18c50f721
SH256 hash:
3624268b1bf67fd3f560f345e5171f3a2f8968a776c23816ea76fc0ef41b0f03
MD5 hash:
1619753b625e58c25b73fbf1f0bff482
SHA1 hash:
c0d7922bdbc10ef0ee1606a40c2dedd22cb180d4
Link:
https://www.unpac.me/results/c15bb862-8e72-4ccf-ba18-583654b97569/
SH256 hash:
9676d9b0ea992353ec6e40bedbed95d1321be2e81d9ea6512dbe568cdca6974c
MD5 hash:
68b7b3844dbd97c79d58cc42fd84711b
SHA1 hash:
a09b8ab5245a5c880e6ce2fa3f340cb46dc1558e
Link:
https://www.unpac.me/results/c15bb862-8e72-4ccf-ba18-583654b97569/
SH256 hash:
ddb4b9708827cb344d5c08c6b07571d0d6a38fd4b594bcbdb73fa4e0104b274d
MD5 hash:
4709d80b2fe48a1401137beae6f231c7
SHA1 hash:
53856da064431f669e254da51bf4a3e7db634120
Link:
https://www.unpac.me/results/c15bb862-8e72-4ccf-ba18-583654b97569/
SH256 hash:
431a78d60704231aeab9c5aa6da1ea20b2b13996c0cd2ea433bbb8d1e009abd4
MD5 hash:
e9abab4888d73c24d7e3871328b23065
SHA1 hash:
19c97530e081b43e92f538da19e9973af5aaae6b
Link:
https://www.unpac.me/results/c15bb862-8e72-4ccf-ba18-583654b97569/
SH256 hash:
8cfdcbcbb0b67c66ebb1c3a4cfb995424a9dc791c13d8df53cea06bcd8c2afef
MD5 hash:
ce411b2f7dfd407c1a546e160193b55d
SHA1 hash:
c061262cf1a7999d7ee59694dd0c8bb570987e02
Link:
https://www.unpac.me/results/c15bb862-8e72-4ccf-ba18-583654b97569/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8cfdcbcbb0b6/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/8cfdcbcbb0b67c66ebb1c3a4cfb995424a9dc791c13d8df53cea06bcd8c2afef

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe 8cfdcbcbb0b67c66ebb1c3a4cfb995424a9dc791c13d8df53cea06bcd8c2afef

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/339412/

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