MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0052550949ab904c6378bf94738d19eaddf7a1f4f1c99d4d75789566f9e95440. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0052550949ab904c6378bf94738d19eaddf7a1f4f1c99d4d75789566f9e95440
SHA3-384 hash: f5e7d0609ffd61f6ae0624c4b702440bc38efedb19d9dc27d0c0deb7c66fb03740c51965163f5408e12139ba1320a4a9
SHA1 hash: 7bcc25c1e706ba53afda15586bbf3e24f74e0d55
MD5 hash: 323093824a28efabe65075d6f58efc3c
humanhash: december-eleven-nebraska-wyoming
File name:RFQ08022022.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:785'920 bytes
First seen:2022-04-25 10:58:06 UTC
Last seen:2022-04-25 11:38:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:G2IJQOs9vJpk2cM9SF/7wplNhOKYSvDVGccGcaoM0FTWP4aa5QYmP3M:9IJQD7m2VNhxfd0h5anR
Threatray 13'631 similar samples on MalwareBazaar
TLSH T184F4DF437615EA4DC875B9F652206E9010A16EDF80B542F268B2377869FA1C3FF503EE
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 0f3375cccc61338f (15 x AgentTesla, 11 x Formbook, 6 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/266313/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.26302.7236.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62667edee1f182a52a5d80e2/reports/b047e966-de34-49c1-ab7c-b4096ddae85f/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/cf40f77f-1943-41ce-81a4-debf0818165f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/982342
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
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
PE file contains section with special chars
PE file has nameless sections
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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: 614829 Sample: RFQ08022022.exe Startdate: 25/04/2022 Architecture: WINDOWS Score: 100 47 www.17weiku.com 2->47 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Multi AV Scanner detection for dropped file 2->67 69 11 other signatures 2->69 11 RFQ08022022.exe 7 2->11         started        signatures3 process4 file5 39 C:\Users\user\AppData\Roaming\WEakPc.exe, PE32 11->39 dropped 41 C:\Users\user\...\WEakPc.exe:Zone.Identifier, ASCII 11->41 dropped 43 C:\Users\user\AppData\Local\...\tmp9119.tmp, XML 11->43 dropped 45 C:\Users\user\AppData\...\RFQ08022022.exe.log, ASCII 11->45 dropped 73 Uses schtasks.exe or at.exe to add and modify task schedules 11->73 75 Adds a directory exclusion to Windows Defender 11->75 77 Tries to detect virtualization through RDTSC time measurements 11->77 79 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->79 15 RFQ08022022.exe 11->15         started        18 powershell.exe 25 11->18         started        20 schtasks.exe 1 11->20         started        22 RFQ08022022.exe 11->22         started        signatures6 process7 signatures8 81 Modifies the context of a thread in another process (thread injection) 15->81 83 Maps a DLL or memory area into another process 15->83 85 Sample uses process hollowing technique 15->85 87 Queues an APC in another process (thread injection) 15->87 24 explorer.exe 15->24 injected 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        process9 dnsIp10 49 doulapsychomot.com 109.234.164.212, 49811, 80 O2SWITCHFR France 24->49 51 www.thesneakerlaundry-riyadh.com 24->51 53 2 other IPs or domains 24->53 71 System process connects to network (likely due to code injection or exploit) 24->71 32 cscript.exe 24->32         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 32->55 57 Modifies the context of a thread in another process (thread injection) 32->57 59 Maps a DLL or memory area into another process 32->59 61 Tries to detect virtualization through RDTSC time measurements 32->61 35 cmd.exe 1 32->35         started        process14 process15 37 conhost.exe 35->37         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0052550949ab904c6378bf94738d19eaddf7a1f4f1c99d4d75789566f9e95440/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-25 09:16:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=abjfkckjvoieyy3yx6khhdiz5lo7pipu6hez2tlvpckwn6pjkraa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0b547b6fbd2328c64aab9806e3617ec953098db3af45a2546697d9ca7ee838c9
Formbook
0d77b75875a9194d47cc35e0a00c6ae29215e585616a28b2519239ee6a6a8165
Formbook
1c1c755e4827a8d1918edff4c58f088ba57fdea5358ba3d627645836703a499f
Formbook
2c9a7034a9d5463d3c4e91dd5b652c91e906864b1731933397b41662bf85d0d2
Formbook
5b8124423be6af37ad74816af0d1df049bc6d740117e934947b067d5fa61eb0b
Formbook
ab16df3a8883b6049c041dfb010de4ca1ff8ef1ff598c46b9395833b52f78f83
Formbook
c0f665918f4ea75327960ddf58cf37e415a6bf6569a4c22aa6291fbac9d171ce
Formbook
ffb2ebccfae79f8c1d5911d41e549a8f876a10708053a4f3a3dbc2ec0e04be48
Formbook
+ 13'621 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:o18j rat spyware stealer trojan
Link:
https://tria.ge/reports/220425-m3djmabhe3/
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
Formbook Payload
Formbook
Unpacked files
SH256 hash:
81621c2cb0534047140e930dec3f56c8a82b4da0edbdd4735d7b2aac0f1cd0d9
MD5 hash:
30fc22115bbbad0a22eab88dec072c92
SHA1 hash:
afc7cee2d35fc21c0a8ae21009f0856309abc345
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/64059875-852b-4846-8776-eb5af825b060/
Parent samples :
0052550949ab904c6378bf94738d19eaddf7a1f4f1c99d4d75789566f9e95440
b3d586ea6f954e72cd9c39838dece4a7e019d7f1916f0984da816d107d03ffe3
a580ab61d55ab77a9c8cc5cf6b548b3c0c7a0a7ad1dc081ec5e90f37066d1445
SH256 hash:
09cd3bc420c8982190990a9673b58c3ab01e933dff0881f1e521d3316f1b9a6b
MD5 hash:
6933707e111286a128ad0f7fa298153f
SHA1 hash:
d1121c8bed634e9684727e8c0aad3f597b0749ad
Link:
https://www.unpac.me/results/64059875-852b-4846-8776-eb5af825b060/
SH256 hash:
087a1481962092db227c4ebffcf7d49121a40035671dadd55cb3d36543f92657
MD5 hash:
9fddce5ea21f44a6cac10e3a7891ca89
SHA1 hash:
5c0fb0ec1f36abfaaa10d7bb750faa2101ab7596
Link:
https://www.unpac.me/results/64059875-852b-4846-8776-eb5af825b060/
SH256 hash:
a8da62965b70c58116d622770526f557c570bf1c93e78133549b822dbcfb9126
MD5 hash:
3c16efbbb8c6188f263511cd4c8416e0
SHA1 hash:
4af387f0dbf5ff0fdee13f8a69e5f9fd73e73dbd
Link:
https://www.unpac.me/results/64059875-852b-4846-8776-eb5af825b060/
SH256 hash:
0052550949ab904c6378bf94738d19eaddf7a1f4f1c99d4d75789566f9e95440
MD5 hash:
323093824a28efabe65075d6f58efc3c
SHA1 hash:
7bcc25c1e706ba53afda15586bbf3e24f74e0d55
Link:
https://www.unpac.me/results/64059875-852b-4846-8776-eb5af825b060/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0052550949ab904c6378bf94738d19eaddf7a1f4f1c99d4d75789566f9e95440

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:pdb2
Create hunting rule
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 0052550949ab904c6378bf94738d19eaddf7a1f4f1c99d4d75789566f9e95440

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/266313/

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