MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42c0e5f0f9d889bd6e7c3a20c23d97a88a9e2ae3ca67a731815c6a698d7de7fb. 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 2 File information Comments
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SHA256 hash: 42c0e5f0f9d889bd6e7c3a20c23d97a88a9e2ae3ca67a731815c6a698d7de7fb
SHA3-384 hash: 3f08e3c050a58fd79239cae1bfe69321a30115f7e52e62b971c1338d78145ce7aeb87bc5051cfe61f050d69baec76744
SHA1 hash: a731c19b68c1b2f79343464bf97b33b4e0cfb191
MD5 hash: 09558dd4ac8e5d72477acec662d954d5
humanhash: mango-six-undress-delta
File name:Bank slip Attached-pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:711'680 bytes
First seen:2022-05-31 02:38:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:T3+2iNJEn27/O61A6uIrfW7U2VkdNM5W9POanROHDDn6dWaMzGSZe1d:L+1rjV+6Bfh2VkdNM5WPOpHSdFGRY
Threatray 14'157 similar samples on MalwareBazaar
TLSH T188E41231DBFB531AE8384BF3A979402023F1AC7DA521DA953DC125FE5D62B14826A70F
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
294
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Bank slip Attached-pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-05-31 02:41:35 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/6f078c85-794c-49e9-9031-d79a62cb386f

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/275568/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Variant.Strictor.267636.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62958004370bb1455cd30d1a/reports/057f4278-1a67-478c-888b-50c1f18f7b4f/overview
Result
Verdict:
UNKNOWN
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/bbf5ea5b-3cd8-4f27-b57b-acc17ab80c40
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1003918
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found 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
Self deletion via cmd or bat file
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 dnsIp2 2 Behavior Graph ID: 636414 Sample: Bank slip Attached-pdf.exe Startdate: 31/05/2022 Architecture: WINDOWS Score: 100 43 www.yanjingbihua.com 2->43 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 11 other signatures 2->53 10 Bank slip Attached-pdf.exe 7 2->10         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\FdpzxxrwFkI.exe, PE32 10->35 dropped 37 C:\Users\...\FdpzxxrwFkI.exe:Zone.Identifier, ASCII 10->37 dropped 39 C:\Users\user\AppData\Local\...\tmp31D5.tmp, XML 10->39 dropped 41 C:\Users\...\Bank slip Attached-pdf.exe.log, ASCII 10->41 dropped 65 Adds a directory exclusion to Windows Defender 10->65 67 Injects a PE file into a foreign processes 10->67 14 Bank slip Attached-pdf.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 14->69 71 Maps a DLL or memory area into another process 14->71 73 Sample uses process hollowing technique 14->73 75 Queues an APC in another process (thread injection) 14->75 21 cmstp.exe 14->21         started        24 explorer.exe 14->24 injected 27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        process9 dnsIp10 55 Self deletion via cmd or bat file 21->55 57 Modifies the context of a thread in another process (thread injection) 21->57 59 Maps a DLL or memory area into another process 21->59 61 Tries to detect virtualization through RDTSC time measurements 21->61 31 cmd.exe 1 21->31         started        45 www.cravestronginfo.com 107.148.139.36, 49806, 80 ASLINE-AS-APASLINELIMITEDHK United States 24->45 63 System process connects to network (likely due to code injection or exploit) 24->63 signatures11 process12 process13 33 conhost.exe 31->33         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/42c0e5f0f9d889bd6e7c3a20c23d97a88a9e2ae3ca67a731815c6a698d7de7fb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-30 23:55:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ilaol4hz3ce323t4hiqmepmxvcfj4kxdzjt2ommblrvgtdl5475q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
022beee80a1abf89283d6c5008a075efd3018a4c382a00165deb171e7702a32e
Formbook
212a9d67f119355da790e8449b6978f357d46bb671d7e038444ad1eae5995bdc
Formbook
85ce49f0532bcb23b394c9af68f6b816670d5deeba332c15aae2ed158a10f19e
Formbook
95bf56d45ed29648838e732b3ab2ba8f968b53d9b9fd7f6155498c958f09bf14
Formbook
b0778020101d914d0b75ae36eafca80f80f985a048d08961e10eec0e1196908d
Formbook
c7fbbdd84572a117d47a54168e71b8bd86f0c70198468486f6c3a040e9ecc310
Formbook
db440e46563f70af514f9705f188cb3c334c64a206895da47f92ef34bbb0dd4a
Formbook
edc8375d2a96c96eb0d3b8c7acfba4a9ba7f602deb4a2738d4ff07f0ee129e98
Formbook
+ 14'147 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ae25 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220531-c5akmsfear/
Behaviour
Creates scheduled task(s)
Gathers network information
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
Checks computer location settings
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
930ad9d2cb793005580bfce82af3f49650d738e691a6a9aef537d8d3d47516a1
MD5 hash:
d1c4c7f310fb64891a1cdfedd62eeed1
SHA1 hash:
9b89d545bb9b25dd43fba3eb0b695ce186c29271
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b0d4b798-c05f-40a6-a02b-4d79c8aa7cbb/
Parent samples :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 hash:
42c0e5f0f9d889bd6e7c3a20c23d97a88a9e2ae3ca67a731815c6a698d7de7fb
MD5 hash:
09558dd4ac8e5d72477acec662d954d5
SHA1 hash:
a731c19b68c1b2f79343464bf97b33b4e0cfb191
Link:
https://www.unpac.me/results/b0d4b798-c05f-40a6-a02b-4d79c8aa7cbb/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/42c0e5f0f9d8/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/42c0e5f0f9d889bd6e7c3a20c23d97a88a9e2ae3ca67a731815c6a698d7de7fb

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
Create hunting rule
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 42c0e5f0f9d889bd6e7c3a20c23d97a88a9e2ae3ca67a731815c6a698d7de7fb

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/275568/

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