MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca89378a6eaf68fe66b2277c6541f913de0937987228a8686a3d876e7f9fa637. 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 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca89378a6eaf68fe66b2277c6541f913de0937987228a8686a3d876e7f9fa637
SHA3-384 hash: bc4cd9df41ff7d5288a0406da620120efcbc24a01f937be8fd47223f375ad3a09802c7517b9470d6995e2f9b98bd22ae
SHA1 hash: 038f46f80340296e856a7182242248e6825358f2
MD5 hash: 95ba23aebb996309b34a377794fa825d
humanhash: oven-failed-twelve-south
File name:SecuriteInfo.com.Win32.PWSX-gen.28382.13404
Download: download sample
Signature Formbook
Create hunting rule
File size:740'864 bytes
First seen:2024-03-06 09:27:16 UTC
Last seen:Never
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:EBtYw/jhtQJEiJP59BdRpxBmCuKXLAjN1S0Yv9Y+iC2U95c5bOsWKlmL2tyB:Bw/jhSKiX9RpxBJiN1q1f3WzWKlJ0
Threatray 89 similar samples on MalwareBazaar
TLSH T120F40101B2FD5F2AE5B98BF6146401550BF670ABBAE5E30C4EC564CA3D71F014BA6B23
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
329
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ca89378a6eaf68fe66b2277c6541f913de0937987228a8686a3d876e7f9fa637.exe
Verdict:
Suspicious activity
Analysis date:
2024-03-06 09:28:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0550a08f-fdc7-46bc-8c89-dd2811697c8f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Win32.PWSX-gen.28382.13404.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65e83728b4fd155504876de8/reports/ca9796b7-6c3a-4ed5-8e41-bc99bea142e7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ca89378a6eaf68fe66b2277c6541f913de0937987228a8686a3d876e7f9fa637
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eefa3d2e-4da3-4ca8-822d-7c64b8880ef6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1403891
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ca89378a6eaf68fe66b2277c6541f913de0937987228a8686a3d876e7f9fa637
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca89378a6eaf68fe66b2277c6541f913de0937987228a8686a3d876e7f9fa637/
Threat name:
Win32.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2024-03-06 07:13:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zketpctov5up4zvse56gkqpzcppasn4yoiukq2dkhwdw4747uy3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
07e858606138fffa52b802f81ca769f8d24ca1c774aedffc44d70bc4c8682753
Formbook
17becbb2ca6ab0b84d5774cb2ae1520f0147dd89f356756fbba2e0f670a0e2f9
Formbook
1cb6bcb746d2ef5bc551082021741efd52c83a488147173bbc51ddf768f9c28e
Formbook
421bc23fe947a02ce49679bf4048785e3d50f4b914c0de05119fd12888687623
Formbook
7a11c35e1719bd95c2d3898f28d39c2143605865d02baf921bc1789c5bfe6683
Formbook
7aa1c19a3c4e2ebcbe15bc2d98dd4fc4aa93fd2cb9130290d17bef4faf7c2fea
Formbook
7c3c5db1be920d65d9f3e1507ad053141b43d5a5cda9c77e01c0eeeeb9a0cf17
Formbook
9ab21860dc07109d05161f3d971e0099619e8ad3902f228d9c75422c9c5026a9
Formbook
c1968c0ec695e8919d12559e65ffa6598009669ce84ee15a7b9190241273caef
Formbook
dab7f2d2eb0ed32fd0e2df22053436a579028d8ef80e56a66900bf93ac655f19
Formbook
+ 79 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240306-lfdqfahb74/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
db45c91f048f475e4fc2fdd60915c4360a9b54e7495427b4322c5033b114b2cb
MD5 hash:
51db6376d98468b832585c4e032f2d3a
SHA1 hash:
a8fa91d277a15bb73ee53c86b30d4f36309c4dc8
Link:
https://www.unpac.me/results/bdadd415-2885-4dd8-8eeb-ad28a45a5625/
SH256 hash:
b3f2bcb08ae6ed77b51186dc73ac27afc31c9e3b175914fbc7e932a053024057
MD5 hash:
8edcf081ada9f28a2722afb40ac6e099
SHA1 hash:
9a1d6568a6063fccac7eef51a12cbdaa81b82262
Link:
https://www.unpac.me/results/bdadd415-2885-4dd8-8eeb-ad28a45a5625/
SH256 hash:
c10c9b0882bac6f788f48b4dabe3291b14e639e650f2b9fcb0bc174ac92ae02b
MD5 hash:
7c7fb6daa78beb69128991ff893143ed
SHA1 hash:
c01bb99984b12b84129db80eae1d5d8341a358e2
Link:
https://www.unpac.me/results/bdadd415-2885-4dd8-8eeb-ad28a45a5625/
SH256 hash:
7cae3e149c46c2207a6351dc2f045a5ee7ef213a7dc940ea5ca508dc8b8ab306
MD5 hash:
9dfdcf368c882ba88bbbd18067672985
SHA1 hash:
bab02a05ada9a07ba97bc5b744bd0fb7becc92d5
Link:
https://www.unpac.me/results/bdadd415-2885-4dd8-8eeb-ad28a45a5625/
SH256 hash:
996efd1a33d04923f83df8ffc31191b10b6a15ef56d8961351673c74416f7506
MD5 hash:
95046bfbc193c1faa89d6a32c870082c
SHA1 hash:
0c707a044df00706628eff48e982d29006c59aeb
Link:
https://www.unpac.me/results/bdadd415-2885-4dd8-8eeb-ad28a45a5625/
SH256 hash:
ca89378a6eaf68fe66b2277c6541f913de0937987228a8686a3d876e7f9fa637
MD5 hash:
95ba23aebb996309b34a377794fa825d
SHA1 hash:
038f46f80340296e856a7182242248e6825358f2
Link:
https://www.unpac.me/results/bdadd415-2885-4dd8-8eeb-ad28a45a5625/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ca89378a6eaf/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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