MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27acd2d5346bddc51729ae4f186f5f9b50d04ad1045d3d67a3fa855ed04ff6ae. 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: 13


Intelligence 13 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27acd2d5346bddc51729ae4f186f5f9b50d04ad1045d3d67a3fa855ed04ff6ae
SHA3-384 hash: e2d5f84d85633b245c86fc928a7bf0ff01ab3a808d3c24eea248cfc6c6503ca18ab99d9fb083f7bc5782acf2f8f90dfe
SHA1 hash: c3a9ec916d32d8280cea8a02e1976c927b645199
MD5 hash: 99a895e2f150d6b4fbc2c6b805de4ae0
humanhash: snake-juliet-blue-finch
File name:Nueva orden de compra pdf mjf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:612'864 bytes
First seen:2022-08-29 13:26:18 UTC
Last seen:2022-08-29 13:43:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:dMcS3+bdxwauWl9+Tq+cZFKw2ylylSx1OJhezQGnG:dFSMaT2wu+cKRyOW
Threatray 18'405 similar samples on MalwareBazaar
TLSH T139D4AE4C79A837FEC863CE35A9A45CA496A368771B4F930E4D8306B8DDDD553EE08063
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon ccb2a698d4d4d8e4 (4 x AgentTesla, 3 x Formbook, 1 x SnakeKeylogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
317
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Nueva orden de compra pdf mjf.exe
Verdict:
Malicious activity
Analysis date:
2022-08-29 13:29:04 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/cb1edab5-6a72-4eb1-a5f3-1f04c0d6fa22

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/302246/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.29905.18476.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file
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/630cbf433e9e50b1bae88ee6/reports/bf281351-015c-4f6a-828b-b317fee17dff/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d353f16a-c09b-4293-897f-5fee2ecda4f6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1059881
Signature
Antivirus detection for URL or domain
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 prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/27acd2d5346bddc51729ae4f186f5f9b50d04ad1045d3d67a3fa855ed04ff6ae/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-08-29 11:02:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e6wnfvjunpo4kfzjvzhrq327tninaswrarot2z5d7kcv5ucp62xa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
089fdb9024c9f8436e2c2a7e0e8734266fe5d65bcdbaf99fac4a26b0879b29d9
Formbook
3dac62c4aec24d40cde7d96891550836d8af9e16c19b995fec79237ff46c0e29
Formbook
64ac613672e24621e590d79800c1028624f90cd6edbab8b64c9608c17497e8bb
Formbook
869eb8d82b8d7148e06b8545f0a69506d59f1bb8ef51eca9bf703b40391ff3a2
Formbook
88faa5aa9f7b5ec0c332eb9c1be6024c984240f61a40d27db64a5a88adb3cbdf
Formbook
917e03484856f0980f2150822a231e0f73e3cef3f074ea1644dcbd1082590399
Formbook
a69ee77f4eb102a3528594435748d3a1e2925022a6d986eac8d32feb068c1f36
Formbook
b7fae274d6430264026973c86b11f4a1705c2fea9302c41159229bc5b97140cf
Formbook
bfac76ed38d1b5d2737a76ce7c59f1651040d11c1ec63388364e4cd37cc4fbee
Formbook
f6a2ab289569d6ab9ecdc198bda044a10591fb4dfb2178977abbe4fdf168df09
Formbook
+ 18'395 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:de08 rat spyware stealer trojan
Link:
https://tria.ge/reports/220829-qp3s5shhaq/
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
Formbook payload
Formbook
Unpacked files
SH256 hash:
3f78f0ffadf4d713bbf5893516266f1528159c5f76d2b0c004162c3c76ca1684
MD5 hash:
035b80025b80603c2338447c8f9deae9
SHA1 hash:
99cd99c2d63e71c6e0d389b8ec0734d4b98c0e72
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/f9af8947-bfdc-4361-98e9-1e08fec238a3/
Parent samples :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 hash:
518de8bd8e3ace836a4ba6131f38edcd187ec50a84cb50f9e904b68af4a0f00d
MD5 hash:
370fb509e068b30f1b77ddfcec791879
SHA1 hash:
d129001b7d43ba64cfed08006a4d959984044e36
Link:
https://www.unpac.me/results/f9af8947-bfdc-4361-98e9-1e08fec238a3/
SH256 hash:
4f80ddfe49b270f801ab44aa899153bbe2a0fb93abed0f9fc992f74ff6ab4fde
MD5 hash:
f4ba8570299eabf8fe2d02cc1dc0606a
SHA1 hash:
5d7add32313074f5a1e9b4ab379298dee8b6217e
Link:
https://www.unpac.me/results/f9af8947-bfdc-4361-98e9-1e08fec238a3/
SH256 hash:
27acd2d5346bddc51729ae4f186f5f9b50d04ad1045d3d67a3fa855ed04ff6ae
MD5 hash:
99a895e2f150d6b4fbc2c6b805de4ae0
SHA1 hash:
c3a9ec916d32d8280cea8a02e1976c927b645199
Link:
https://www.unpac.me/results/f9af8947-bfdc-4361-98e9-1e08fec238a3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/27acd2d5346bddc51729ae4f186f5f9b50d04ad1045d3d67a3fa855ed04ff6ae

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 27acd2d5346bddc51729ae4f186f5f9b50d04ad1045d3d67a3fa855ed04ff6ae

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/302246/

Comments