MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ba31a3552408e0705d29a1021b662de94a2adda9f5e994ed99ac78c89ff32f18. 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: ba31a3552408e0705d29a1021b662de94a2adda9f5e994ed99ac78c89ff32f18
SHA3-384 hash: a584d35df9b4416aadff2b548847d2113030b263510745d622549cfc7fa5b4db1609a9c6dcb5917d02e7ba72736b6ebb
SHA1 hash: 11e064192006a69c89fa282c41bf6e8cee1d2dc1
MD5 hash: 71dd193b6bc669345e7fecd5e6bbb536
humanhash: september-jupiter-kilo-thirteen
File name:Purchase Order Delivery Reminder!.exe
Download: download sample
Signature Formbook
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File size:740'352 bytes
First seen:2022-09-05 20:57:19 UTC
Last seen:2022-09-14 14:14:10 UTC
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:GVF75e1ZYj3jVULYsR7xWR7XeCCvIaViGm8qwir1dvSbtgW9rpx+Me/H:GVZ52ZCJULYqFWRXgQS1yJdSbSwFxe
TLSH T1CFF48CA6D0E4FF13F3371E387370AE56862919374B998145E8EBC7A161CAE35602F583
TrID 54.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
23.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0e4ac5cd3f2e8f0 (10 x Formbook, 4 x Loki, 3 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
381
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Purchase Order Delivery Reminder!.exe
Verdict:
Malicious activity
Analysis date:
2022-09-05 20:59:20 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/f29d667c-a898-47f0-a2d2-882aecc16ce7

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/307988/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1427-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed remcos
Link:
https://www.filescan.io/uploads/631663562916aa429410f786/reports/6b09fa61-321a-4dac-9062-ce0e8a4e6844/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/5f5b5c81-6faf-4104-9b40-b5c168169837
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1065298
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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
Snort IDS alert for network traffic
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: 697824 Sample: Purchase Order Delivery Rem... Startdate: 05/09/2022 Architecture: WINDOWS Score: 100 45 www.hipsandcures.com 2->45 49 Snort IDS alert for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 14 other signatures 2->55 10 Purchase Order Delivery Reminder!.exe 7 2->10         started        signatures3 process4 file5 37 C:\Users\user\AppData\Roaming\WKwUkElL.exe, PE32 10->37 dropped 39 C:\Users\...\WKwUkElL.exe:Zone.Identifier, ASCII 10->39 dropped 41 C:\Users\user\AppData\Local\...\tmp86AD.tmp, XML 10->41 dropped 43 Purchase Order Del...y Reminder!.exe.log, ASCII 10->43 dropped 65 Adds a directory exclusion to Windows Defender 10->65 67 Injects a PE file into a foreign processes 10->67 14 Purchase Order Delivery Reminder!.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        21 2 other processes 10->21 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 23 chkdsk.exe 14->23         started        26 explorer.exe 14->26 injected 29 conhost.exe 17->29         started        31 conhost.exe 19->31         started        process9 dnsIp10 57 Modifies the context of a thread in another process (thread injection) 23->57 59 Maps a DLL or memory area into another process 23->59 61 Tries to detect virtualization through RDTSC time measurements 23->61 33 cmd.exe 1 23->33         started        47 www.thekeyproduction.com 26->47 63 System process connects to network (likely due to code injection or exploit) 26->63 signatures11 process12 process13 35 conhost.exe 33->35         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/ba31a3552408e0705d29a1021b662de94a2adda9f5e994ed99ac78c89ff32f18/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-09-05 00:28:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xiy2gvjebdqhaxjjuebbwzrn5ffcvxnj6xuzj3mzvr4mrh7tf4ma._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:lsg6 rat spyware stealer trojan
Link:
https://tria.ge/reports/220905-zr5vysfadk/
Behaviour
Creates scheduled task(s)
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
Blocklisted process makes network request
Formbook payload
Formbook
Unpacked files
SH256 hash:
2b973882d230daec9bb453ade787729b8a2425f237a43cec483b87ab3c78811b
MD5 hash:
bebc1db2e8261b4ba9d191b90789d92c
SHA1 hash:
dc241d081836dde0be5ac13e2eb5e66af5e2b640
Detections:
FormBook
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/18a8120d-c5b5-41cd-a477-c28bc506cb40/
Parent samples :
ba31a3552408e0705d29a1021b662de94a2adda9f5e994ed99ac78c89ff32f18
877b26e0bec03030ed3d0d7a92c53c46e6f696df51be924817421f1685d21b50
96df49e0deef67a2fc032cf1018662606bdef066655c1f31f135ccf8e68bace5
70d121cfabbbf118335b8ae4f6a3a072f09ce2f11bd73c711120fa9070d608e3
a0bb4aba51b98f18ee5fb62cca841faf2e7aabb304300cc7d4d90125cba09d61
c79bd4c69c806e1516f6cf2160ffa1172e074fbe652bd3793f661aaa39cccab9
51f2aed60e4e94e4ff442a809b63f4dd3a05b2b0e8d6dad5e595f7c2a01f892b
cd5be9697ae42581a073c8bb97da6b7d67becea5e83b4dc259b0e47ef54029d9
e8911ed914364aaa1dbffcfe55c53e2932e9f38ea490523a8bcaf8e13633187a
SH256 hash:
bd9b512787b7a5f8a61e708ac484b59a0e6efa56c2ad2bf5275dbe97894ced2c
MD5 hash:
08ad2c9df45b675da7d47353df084fc6
SHA1 hash:
2795afc8014c63aeb931373e6f1e1e51a28dad47
Link:
https://www.unpac.me/results/18a8120d-c5b5-41cd-a477-c28bc506cb40/
SH256 hash:
c45a3dae97e5e635a567df02635fe941af384f35cc993d4e52a57fa4f4026b3e
MD5 hash:
966c65a2893f62df72494272d810448f
SHA1 hash:
de82f765123b6ed954996603b663e9bac36acfb6
Link:
https://www.unpac.me/results/18a8120d-c5b5-41cd-a477-c28bc506cb40/
SH256 hash:
bfb6242c32b17e99df86449c1fdaae17b656b4acd1df9d52dacb677e03a44f76
MD5 hash:
4dd4534ba123d3e0b6601c9e301314f2
SHA1 hash:
2aa443b51873c89bb651ecb097d845b0f562f528
Link:
https://www.unpac.me/results/18a8120d-c5b5-41cd-a477-c28bc506cb40/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/18a8120d-c5b5-41cd-a477-c28bc506cb40/
SH256 hash:
ba31a3552408e0705d29a1021b662de94a2adda9f5e994ed99ac78c89ff32f18
MD5 hash:
71dd193b6bc669345e7fecd5e6bbb536
SHA1 hash:
11e064192006a69c89fa282c41bf6e8cee1d2dc1
Link:
https://www.unpac.me/results/18a8120d-c5b5-41cd-a477-c28bc506cb40/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ba31a3552408/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/ba31a3552408e0705d29a1021b662de94a2adda9f5e994ed99ac78c89ff32f18

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
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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

gz 99eb4b8f0cc55e0f1b87bc22a5cc5ef244f3265a42a4930ee0bb31d44fe977b1

Formbook

Executable exe ba31a3552408e0705d29a1021b662de94a2adda9f5e994ed99ac78c89ff32f18

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/307988/
  
Dropped by
SHA256 99eb4b8f0cc55e0f1b87bc22a5cc5ef244f3265a42a4930ee0bb31d44fe977b1
  
Dropped by
MD5 78223517b1a6a9a5764b2e0f319e40f3

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