MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db351de507bfb075469e69ffe4859653ca3b3d0729c0236a5d3f8fd935e01cde. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: db351de507bfb075469e69ffe4859653ca3b3d0729c0236a5d3f8fd935e01cde
SHA3-384 hash: f5ad722fce219cec68b241863424cb5f9e80a745a9d84f7e266b9113c1576cdff81e1ff83b423e6e179b775194976074
SHA1 hash: 2646f10d8a57dd66783a3dfb760c90fd0a1e39f9
MD5 hash: 1147b7f65316255a2c423847ebfc5178
humanhash: johnny-vegan-johnny-cat
File name:Zargbqzk.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:753'664 bytes
First seen:2021-03-09 15:58:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0c4ee73e2314625013995d8fcbbc1e29 (3 x Formbook, 2 x NetWire, 1 x Loki)
ssdeep 12288:4WvotGuCXzMfmdGec+DWs26KD/pxGEqsMFfD6STyl:4WvIEym4yZep7kD6STy
Threatray 3'991 similar samples on MalwareBazaar
TLSH 3FF4BF32E291587BD1772B79DE5B56AD9829BF003F1CDC862BE99C4C8F367813814293
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

From: Kanzler Jenniferl<mail@webservice-secure.com>
Subject: Property Request
Attachment: Property.img (contains "Zargbqzk.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Zargbqzk.exe
Verdict:
Malicious activity
Analysis date:
2021-03-09 16:46:44 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/1dd49340-6297-475d-a320-a2d0a0360e8f

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/123317/
Detection(s):
PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Sending a custom TCP request
Creating a file
Deleting a recently created file
Unauthorized injection to a recently created process
Launching cmd.exe command interpreter
Setting browser functions hooks
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/633155
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: Suspicious Program Location Process Starts
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 365556 Sample: Zargbqzk.exe Startdate: 09/03/2021 Architecture: WINDOWS Score: 100 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Yara detected FormBook 2->66 68 6 other signatures 2->68 10 Zargbqzk.exe 1 18 2->10         started        15 Zargbpoe.exe 2->15         started        process3 dnsIp4 52 cdn.discordapp.com 162.159.130.233, 443, 49705 CLOUDFLARENETUS United States 10->52 42 C:\Users\Public\Libraries\Zargbpoe.exe, PE32 10->42 dropped 44 C:\Users\Public\Libraries\Zargb, ASCII 10->44 dropped 86 Detected unpacking (changes PE section rights) 10->86 88 Tries to detect virtualization through RDTSC time measurements 10->88 90 Injects a PE file into a foreign processes 10->90 17 Zargbqzk.exe 10->17         started        92 Machine Learning detection for dropped file 15->92 20 Zargbpoe.exe 15->20         started        file5 signatures6 process7 signatures8 54 Modifies the context of a thread in another process (thread injection) 17->54 56 Maps a DLL or memory area into another process 17->56 58 Sample uses process hollowing technique 17->58 60 Queues an APC in another process (thread injection) 17->60 22 explorer.exe 17->22 injected process9 dnsIp10 46 www.euygunfirmalar.com 22->46 48 www.electronicservicesonline.com 22->48 50 electronicservicesonline.com 34.98.99.30, 49725, 80 GOOGLEUS United States 22->50 76 System process connects to network (likely due to code injection or exploit) 22->76 26 Zargbpoe.exe 22->26         started        29 cmd.exe 22->29         started        31 colorcpl.exe 22->31         started        33 explorer.exe 22->33         started        signatures11 process12 signatures13 78 Injects a PE file into a foreign processes 26->78 35 Zargbpoe.exe 26->35         started        80 Modifies the context of a thread in another process (thread injection) 29->80 82 Maps a DLL or memory area into another process 29->82 84 Tries to detect virtualization through RDTSC time measurements 29->84 38 cmd.exe 1 29->38         started        process14 signatures15 70 Modifies the context of a thread in another process (thread injection) 35->70 72 Maps a DLL or memory area into another process 35->72 74 Sample uses process hollowing technique 35->74 40 conhost.exe 38->40         started        process16
Gathering data
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-03-09 15:58:14 UTC
AV detection:
22 of 47 (46.81%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3m2r3zihx6yhkru6nh76jbmwkpfdwpihfhacg2s5h6h5snpadtpa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
064cad19bee4580a82bc4ee3558e8510100ebba8da83720749f553cc411d5cb3
Formbook
06fa1b160e322bd7710c9110b1e4e873795b5c2680b8bbe70bbaf23484533459
Formbook
083d5efb4da09432a206cb7fba5cef2c82dd6cc080015fe69c2b36e71bca6c89
Formbook
12e42bff4fa377032623342ac1f23a5c87225a40ef8b900cbb06ae4bd203864d
Formbook
21ba0bed0b05a2ce68496e73a5c103fb5b815ac2c77e997f46e5d09666c1c978
Formbook
43aa01ebbd20c81ee60bd5b6bacabcdd0a84e0aeb892c0ea18383261dbcdb0fb
Formbook
7c201535a28746b62adfa831cfccac096903f5b17ee83b8364fc890fa70a59fd
Formbook
92ddc88d7c1bde849c18747f4fcd526c240a81efe9c74ee1dcaa4a72ecc9ac3a
Formbook
92f656d44d38fbc5e7964e36634bf95d18e157228624d1b38ea933633579ddc4
Formbook
af05a9b5f7ed6483d7f10ea0e521e0a15fd90d224ca04a9665991ab630a54991
Formbook
+ 3'981 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/210309-bmgkz89ehs/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.electronicservicesonline.com/jsyp/
Unpacked files
SH256 hash:
6cf97407564758a89313c781f003b69f85db94e608e0d1814da724c4e3917530
MD5 hash:
86d444f389003fb10ff0a4bec5e0f46f
SHA1 hash:
ecdb825b2aec46da313937e54e384a61ed1394cb
Link:
https://www.unpac.me/results/27b912ef-76f1-4d99-b712-7c1309345adb/
SH256 hash:
db351de507bfb075469e69ffe4859653ca3b3d0729c0236a5d3f8fd935e01cde
MD5 hash:
1147b7f65316255a2c423847ebfc5178
SHA1 hash:
2646f10d8a57dd66783a3dfb760c90fd0a1e39f9
Link:
https://www.unpac.me/results/27b912ef-76f1-4d99-b712-7c1309345adb/
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/db351de507bfb075469e69ffe4859653ca3b3d0729c0236a5d3f8fd935e01cde

File information

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

Malspam

Formbook

img d7fce1edc874a407a2526b66388b45cff1171aaecd504febe24691960eababd3

Formbook

Executable exe db351de507bfb075469e69ffe4859653ca3b3d0729c0236a5d3f8fd935e01cde

(this sample)

  
Dropped by
MD5 2bd82bde7645733bfd8533cefaf6e543
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/123317/
  
Dropped by
SHA256 d7fce1edc874a407a2526b66388b45cff1171aaecd504febe24691960eababd3

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