MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 261bc200d0f8ea4598b2f907283268c101b8e8dff6e0604627ba0e98c94d075e. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 261bc200d0f8ea4598b2f907283268c101b8e8dff6e0604627ba0e98c94d075e
SHA3-384 hash: a4eb4638b52b7ec447e16ffd004bf1b8d94c5fed8dcf5c4a6b57611e24216bcca112b2a6e8dfa9aab09efa953813047f
SHA1 hash: 64f6284590c627427c674606e75227302b609154
MD5 hash: e9bf6f679d853cb6bffe070cb2e8e1ca
humanhash: leopard-island-sad-summer
File name:4400820_AL TUWAIJRI.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:541'203 bytes
First seen:2021-12-23 12:56:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 12288:aVEWuOesJSfJ21lRSr++PDAD+e3zBIMAbfnKEs:QfVHsrPD+BzBwfKT
Threatray 12'640 similar samples on MalwareBazaar
TLSH T12FB4128A784DC179D169C232E6EBF4F212B69C95D2601AC333A4FFA73DB2053A65D017
File icon (PE):PE icon
dhash icon 009c98969ea89a00 (1 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
252
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4400820_AL TUWAIJRI.exe
Verdict:
Malicious activity
Analysis date:
2021-12-23 12:59:25 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/73e4729c-e62e-4d89-9fc9-a0e7c0e336e8

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/215963/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
DNS request
Searching for synchronization primitives
Sending a custom TCP request
Sending an HTTP GET request
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/3017/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/61c471e7ec6c6c14a9ec8451/reports/8f19eb1f-2706-435f-8c28-39e56e372e40/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3e59b571-9262-4df6-9e9c-f01ee49352f2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/912017
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for domain / URL
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 544495 Sample: 4400820_AL TUWAIJRI.exe Startdate: 23/12/2021 Architecture: WINDOWS Score: 100 35 Multi AV Scanner detection for domain / URL 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 3 other signatures 2->41 10 4400820_AL TUWAIJRI.exe 17 2->10         started        process3 file4 31 C:\Users\user\AppData\Local\...\vziqfahv.dll, PE32 10->31 dropped 51 Injects a PE file into a foreign processes 10->51 14 4400820_AL TUWAIJRI.exe 10->14         started        signatures5 process6 signatures7 53 Modifies the context of a thread in another process (thread injection) 14->53 55 Maps a DLL or memory area into another process 14->55 57 Sample uses process hollowing technique 14->57 59 Queues an APC in another process (thread injection) 14->59 17 explorer.exe 14->17 injected process8 process9 19 systray.exe 17->19         started        signatures10 43 Self deletion via cmd delete 19->43 45 Modifies the context of a thread in another process (thread injection) 19->45 47 Maps a DLL or memory area into another process 19->47 49 Tries to detect virtualization through RDTSC time measurements 19->49 22 explorer.exe 1 145 19->22         started        25 cmd.exe 1 19->25         started        27 explorer.exe 1 147 19->27         started        process11 dnsIp12 33 192.168.2.1 unknown unknown 22->33 29 conhost.exe 25->29         started        process13
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/261bc200d0f8ea4598b2f907283268c101b8e8dff6e0604627ba0e98c94d075e/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-12-23 12:56:09 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eyn4eagq7dvelgfs7edsqmtiyea3r2g763qgarrhxihjrskna5pa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
19cf4ce7f3aa0cb41dae8a27aa4421dce752bb3e083e8e0daf138bdfc113c7e6
Formbook
230f53c0367ccdf77ff1f665ea66fcb2e6bb18c999b798980d8e0c9c19421eb3
Formbook
6bd5fda97afe76f3d6cc66ffac1350e77256315e151364355af9ee6d56be8ebf
Formbook
7206a2aa27d3bb73daca20e7327a3e4cc2f66940e27cda04d3e8440450617596
Formbook
787179b3dd4ded4008927e4033331b00b60762872da94de5db3e6bf4a3b6e143
Formbook
8c6441d2f5e108a63524430674b8f711cc7b218a2a06fa2c43e24b1de1d76088
Formbook
9050768f69225078f05d535401510a5b361dd071430e40639e869c7247621908
Formbook
e3377e5efb2f7874ba37548215fbd3ef401482295a8bbff93c18c1fcb8b912c9
Formbook
fcc9a8bcf0f3ce38b65db3c62f942f77f537acb4a17ac2fd8a6a8293ea896fb9
Formbook
+ 12'630 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:a6hs loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211223-p6cslsafbl/
Behaviour
Modifies Internet Explorer settings
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
NSIS installer
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
7556dd67d8c308f207cd8921e5731f0f92b9f409dcb8d6911e3c75ad0495d319
MD5 hash:
a316fa60e80eaf2c45d9cfe27b05989b
SHA1 hash:
d6c345217d5e4b0dd0b111c5b0a71b1f2de1b902
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5e18865e-1045-4390-a9d8-2aab0530a35b/
Parent samples :
bd9a95ec422eae5d2edc8906c5e9517f26d40a0a882d933feb380ef587caad70
e3377e5efb2f7874ba37548215fbd3ef401482295a8bbff93c18c1fcb8b912c9
a836f58331e704400ed167283097dd77e26bb2653ac41c7fc1fc767196a60b66
261bc200d0f8ea4598b2f907283268c101b8e8dff6e0604627ba0e98c94d075e
SH256 hash:
cd83f00525b9ffe844c70f2cfa1408128d3101fcb16e179293795c488a1e9ab9
MD5 hash:
ee094cd052012cc566a946d0d43e119e
SHA1 hash:
62979dddce0040dc001aafab9a3adb5cae30d7df
Link:
https://www.unpac.me/results/5e18865e-1045-4390-a9d8-2aab0530a35b/
SH256 hash:
261bc200d0f8ea4598b2f907283268c101b8e8dff6e0604627ba0e98c94d075e
MD5 hash:
e9bf6f679d853cb6bffe070cb2e8e1ca
SHA1 hash:
64f6284590c627427c674606e75227302b609154
Link:
https://www.unpac.me/results/5e18865e-1045-4390-a9d8-2aab0530a35b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/261bc200d0f8ea4598b2f907283268c101b8e8dff6e0604627ba0e98c94d075e

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

Executable exe 261bc200d0f8ea4598b2f907283268c101b8e8dff6e0604627ba0e98c94d075e

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/215963/

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