MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a. 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: 16


Intelligence 16 IOCs YARA 18 File information Comments
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SHA256 hash: 8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a
SHA3-384 hash: 1a7af6453beedf8bda6528ab0de3cde77fbf3fd037e777760ab0367306414b47c4940637cb3961610ea695ee294271bf
SHA1 hash: 924abf59555a3b57e0a48f5ffb63732ac6969045
MD5 hash: efc1aecb2febb98362434f147e63d852
humanhash: nineteen-sweet-florida-floor
File name:Our New Order Form No. 155717.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:688'128 bytes
First seen:2024-04-10 13:04:15 UTC
Last seen:2024-04-10 13:24:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:gtNR4EoOBKMNHlg5yjFqYG6W0KDyMBu34T9NwdooIqVN5hxhwaJX6gtnSHjP:CoOBrBltZSqtAu34THgamuwX3ajP
TLSH T138E42261365B5A87C3A797FA0E73118047F4B979BE12D3EC4D80344E2DE5B8502C6EAB
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 185210d0d01430b2 (4 x AgentTesla, 3 x Formbook, 1 x RemcosRAT)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
390
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a.exe
Verdict:
Malicious activity
Analysis date:
2024-04-10 13:07:14 UTC
Tags:
formbook xloader stealer spyware
Link:
https://app.any.run/tasks/08939a20-e28c-474a-b510-0e8c9d9e67dd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a
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/3580b69a-3914-4caf-ac55-3cf0d443be4a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1423899
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Double Extension File Execution
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1423899 Sample: Our New Order Form No. 1557... Startdate: 10/04/2024 Architecture: WINDOWS Score: 100 36 www.traumatic.xyz 2->36 38 yeondagoods.com 2->38 40 13 other IPs or domains 2->40 48 Snort IDS alert for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 56 13 other signatures 2->56 11 Our New Order Form No. 155717.pdf.exe 4 2->11         started        signatures3 54 Performs DNS queries to domains with low reputation 36->54 process4 signatures5 60 Writes to foreign memory regions 11->60 62 Allocates memory in foreign processes 11->62 64 Adds a directory exclusion to Windows Defender 11->64 66 Injects a PE file into a foreign processes 11->66 14 RegSvcs.exe 11->14         started        17 powershell.exe 23 11->17         started        19 RegSvcs.exe 11->19         started        process6 signatures7 74 Modifies the context of a thread in another process (thread injection) 14->74 76 Maps a DLL or memory area into another process 14->76 78 Sample uses process hollowing technique 14->78 80 Queues an APC in another process (thread injection) 14->80 21 explorer.exe 61 1 14->21 injected 82 Loading BitLocker PowerShell Module 17->82 25 conhost.exe 17->25         started        84 Tries to detect virtualization through RDTSC time measurements 19->84 process8 dnsIp9 42 www.drywallandpaintingservice.com 216.22.1.92, 49710, 80 LEASEWEB-USA-WDCUS United States 21->42 44 yeondagoods.com 14.128.152.75, 49713, 80 KIXS-AS-KRKoreaTelecomKR Korea Republic of 21->44 46 301tz.zlgcdn.com 117.18.3.141, 49714, 80 SUNHK-DATA-AS-APSunNetworkHongKongLimited-HongKong Hong Kong 21->46 58 System process connects to network (likely due to code injection or exploit) 21->58 27 control.exe 21->27         started        30 autoconv.exe 21->30         started        signatures10 process11 signatures12 68 Modifies the context of a thread in another process (thread injection) 27->68 70 Maps a DLL or memory area into another process 27->70 72 Tries to detect virtualization through RDTSC time measurements 27->72 32 cmd.exe 1 27->32         started        process13 process14 34 conhost.exe 32->34         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-04-10 05:13:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rkzalxcnn56cglhz4ichu2v7jmv3mqssldhp5l43axusfsbctrva._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:fs83 rat spyware stealer trojan
Link:
https://tria.ge/reports/240410-qbhaaabg8y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
139f75b55ff904e5ccbc51d61c61de935274c66cfa38d9cb859461ea2216bd81
MD5 hash:
cdf453020c11d01891a06da4b1ec17d3
SHA1 hash:
27f91c5c7afdc57847d17f8274ce3b3ba96bbf8b
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/69e144e3-1c8a-4497-b913-e3a3cae3d743/
Parent samples :
8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a
37fd7b8035bd49b8dfad405a793428dda8cbf623de0133818756d05a1191d8b7
e1fd783c3c5c3a686b2ae04b64ecce2b3c5e00d2bed04cdbf8f420a57d82208e
3fce144519b73bde4b30740ced6678a0aebcfcf00c7ff2ed6f78034cd5900f56
331ca91b3a643aab796547bdd69ecd624ab13ac224ea80f88ca4a8987c0625e3
eec2040b640e5b1806119e1a428d54c4dab8fe87e2afe89570d158968122e4bb
SH256 hash:
bc39c3ba2ef220300f37e0ccffd84e387eaa28c831859c3588cdfdeec243b0c5
MD5 hash:
e4c53cafec45a303e00d4d7702b02822
SHA1 hash:
bf21964cd02330655a1eb04fb83ece35899977bf
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/69e144e3-1c8a-4497-b913-e3a3cae3d743/
Parent samples :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 hash:
141e795781f31e48e2a567b4a62d66e6f6d3f7d174a36bb542d2e3eb0b3d29a1
MD5 hash:
b94fa0f631279a072ec7b23076028d08
SHA1 hash:
40ff384eb7faf04bd0741755ff74172f9ec06173
Link:
https://www.unpac.me/results/69e144e3-1c8a-4497-b913-e3a3cae3d743/
SH256 hash:
ec0e717966b3c5b242b102c64c3a3c02dc7bcd039d287dfe78cc893c89e72515
MD5 hash:
0985ac17887ee15b6af4f5197564fef8
SHA1 hash:
36392dce4f12a0f22c0b1360cf349e09730ca05d
Link:
https://www.unpac.me/results/69e144e3-1c8a-4497-b913-e3a3cae3d743/
SH256 hash:
8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a
MD5 hash:
efc1aecb2febb98362434f147e63d852
SHA1 hash:
924abf59555a3b57e0a48f5ffb63732ac6969045
Link:
https://www.unpac.me/results/69e144e3-1c8a-4497-b913-e3a3cae3d743/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8ab205dc4d6f/report/overview.html
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/8ab205dc4d6f7c232cf9e2047a6abf4b2bb6425258cefeaf9b05e922c8229c6a

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__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:DebuggerException__SetConsoleCtrl
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: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: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: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.

  
Delivery method
Other

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