MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37899fda8cbf74882ae5d68bcd1de525005edfb8b5b87edd42fd86c458bb998f. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37899fda8cbf74882ae5d68bcd1de525005edfb8b5b87edd42fd86c458bb998f
SHA3-384 hash: c936bf42eeb480f6b34b281fc2dd4d1d92ff5c68b70d824269420dd9e9261f62f258b0be690566a6e7a6973c0404a4c5
SHA1 hash: 371b73db276210678f1652d58021bbed388c7709
MD5 hash: 1f7d7f2e46aeddc073851ae8cb0ef404
humanhash: don-mango-nebraska-arizona
File name:Shipping doc for CMA-CMG-SHP103-xls.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:725'504 bytes
First seen:2024-03-20 06:11:38 UTC
Last seen:2024-03-20 07:37:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'739 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:FWy1kz0M7DqpNKaeSlFuBhSBPCc0IJdxpElqPU2Zyst/hBIoaoX5QJ:31ZYDqqNSEzc0OAqhHtKoX58
Threatray 279 similar samples on MalwareBazaar
TLSH T10FF423953B983E57EB3A06F6D441450117B38A771922D3CACCC1B4DE5AC9FC2739921B
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)
File icon (PE):PE icon
dhash icon cc948b667969653c (13 x AgentTesla, 5 x Formbook, 2 x RemcosRAT)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
390
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
37899fda8cbf74882ae5d68bcd1de525005edfb8b5b87edd42fd86c458bb998f.exe
Verdict:
Suspicious activity
Analysis date:
2024-03-20 06:12:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/961120b0-10e8-4293-a4cb-294e0d357368

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65fa7e32c1137bbf149f1ea2/reports/320b55aa-50ad-4436-85f1-e3ddf1404a47/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/37899fda8cbf74882ae5d68bcd1de525005edfb8b5b87edd42fd86c458bb998f
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:
MSIL Injector
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e5c68793-065a-430b-b187-c9c3bca5da44
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1412147
Signature
.NET source code contains potential unpacker
Found direct / indirect Syscall (likely to bypass EDR)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37899fda8cbf74882ae5d68bcd1de525005edfb8b5b87edd42fd86c458bb998f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37899fda8cbf74882ae5d68bcd1de525005edfb8b5b87edd42fd86c458bb998f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-03-20 03:57:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
21 of 37 (56.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g6ez7wumx52iqkxf22f42hpfeuaf5x5yww4h5xkc7wdmiwf3tghq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
43ac733f64df5f18a72d1f36a3c5ae365f5cd791d855d72a9f887015bb71adb7
Formbook
54a4891d6753b4acaa07bb6c01aebcb44a0140ffc05ccdc53785a74365969585
Formbook
614ae605266b9829b5577ebd8562f5fadb2ef82337597d32e54c8ace9f1ea25c
Formbook
70f27cc87397701a73835625b0ee8caf3ef97b506554f2a7f65c2c08afd264f7
Formbook
b0b90ffc1bf2e33f057981b8d2451df026fc5179df8774f1cd647ff0a5bf89fd
Formbook
d0b94b855d2f24add1edf6b3a6ecae24e4366f181a1ccd0bcd3b27e94de95bc0
Formbook
e54350487bda76835619ccc44ff79db38db5183f544efbf33159cfd707bcdb75
Formbook
+ 269 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240320-gx6ekaba2w/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
98f91bc6955a1c58a85758f4e7fab5d9ecb76c55c18a85e03134ff634f0d0a53
MD5 hash:
69253193c37a660f7a71a6e06662a6e9
SHA1 hash:
a1cb5a168e808157de805de7f13ba3181754e7f0
Link:
https://www.unpac.me/results/84a7e70c-8547-4fe0-9991-76b362d328c4/
SH256 hash:
1c1a210be7948e6db0d695e2fa91c96f0fe652cd20a0e72dcf872305c73bcfce
MD5 hash:
46ba5609ed416e8c1c0f714c003fe23f
SHA1 hash:
7abd1c8e8f66494e1fd2ec7c7b15c677fa0dda3a
Link:
https://www.unpac.me/results/84a7e70c-8547-4fe0-9991-76b362d328c4/
SH256 hash:
c9e2daa10a60b6a26a45c5289e5fd81052195203806d08a205bae26734edbce6
MD5 hash:
ff0a375d37a6ccc4340007b4b036e8cf
SHA1 hash:
fbbce46e4a73e55d97b055d01f094b9df9fa4488
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/84a7e70c-8547-4fe0-9991-76b362d328c4/
SH256 hash:
975d5c095a6bd20d20d1553f0ad36795517087712bdc2a18fb8516665539242e
MD5 hash:
53106229a87e970b8befe76d9118f647
SHA1 hash:
f4965d92934d4acff7ad5f4f9521a1b8fb584798
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/84a7e70c-8547-4fe0-9991-76b362d328c4/
Parent samples :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 hash:
070e0e6e1113f7844cf626c6dba0b7925449ec7e735e3c68d2df83a3aaf0295e
MD5 hash:
8ac26a729fde5997e69e650cf1177238
SHA1 hash:
07630a21fcc40aa2523ff1d0111c4d591c31edbe
Link:
https://www.unpac.me/results/84a7e70c-8547-4fe0-9991-76b362d328c4/
SH256 hash:
37899fda8cbf74882ae5d68bcd1de525005edfb8b5b87edd42fd86c458bb998f
MD5 hash:
1f7d7f2e46aeddc073851ae8cb0ef404
SHA1 hash:
371b73db276210678f1652d58021bbed388c7709
Link:
https://www.unpac.me/results/84a7e70c-8547-4fe0-9991-76b362d328c4/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37899fda8cbf/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: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:NETexecutableMicrosoft
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.

Malspam

Formbook

Executable exe 37899fda8cbf74882ae5d68bcd1de525005edfb8b5b87edd42fd86c458bb998f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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 (GUARD_CF)high

Comments