MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451
SHA3-384 hash: 75d292b8cecb2b3045ab00a4dd7070cf7dacbd5a0b4365dc93e0778f9892f2f159ddf9abd5b23810a88a0acfb3376ef9
SHA1 hash: 3ba5b289d064adfcb73e92c1444e7b60b7929fa0
MD5 hash: 19a43363822338c4a87fd7403c43fed4
humanhash: rugby-don-pennsylvania-carolina
File name:q5ApY1XJPFnBr0G.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:727'040 bytes
First seen:2024-06-04 07:18:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 12288:d11cKNr+u995CVlp1zO0G2EqloCUegenGTGFN1HXPZZFys1aygQGJ:9bCuXiLzO0jloCmeGSFN13PdaQ
TLSH T1B8F4020233B93713D87D8BF9006112501B767A66A876C33DCDC221CE5D66B8176AFEA7
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter cocaman
Tags:exe FormBook Shipping

Intelligence

File Origin
# of uploads :
1
# of downloads :
393
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451.exe
Verdict:
Malicious activity
Analysis date:
2024-06-04 07:21:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9400c4f1-9cb9-434c-a13b-30c4496f01de

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilheracles-10020638-0
Create hunting rule

Win.Dropper.Nanocore-10024150-0
Create hunting rule

Win.Packed.LokiBot-10026312-0
Create hunting rule

Win.Packed.LokiBot-10027126-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665ed98bab69e84d6a2f5746win7simulatehigh_evasion
Tags:
Generic Network Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451
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/0f2ccfac-6876-4ef1-b94b-b843357824c3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1451582
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1451582 Sample: q5ApY1XJPFnBr0G.exe Startdate: 04/06/2024 Architecture: WINDOWS Score: 100 30 www.warehouse-inventory-80963.bond 2->30 32 www.veryaroma.com 2->32 34 14 other IPs or domains 2->34 42 Snort IDS alert for network traffic 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 10 other signatures 2->48 11 q5ApY1XJPFnBr0G.exe 3 2->11         started        signatures3 process4 signatures5 58 Tries to detect virtualization through RDTSC time measurements 11->58 60 Injects a PE file into a foreign processes 11->60 14 q5ApY1XJPFnBr0G.exe 11->14         started        17 q5ApY1XJPFnBr0G.exe 11->17         started        process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 19 explorer.exe 61 1 14->19 injected process8 dnsIp9 36 www.warehouse-inventory-80963.bond 185.53.179.94, 49750, 80 TEAMINTERNET-ASDE Germany 19->36 38 ext-sq.squarespace.com 198.185.159.144, 49745, 80 SQUARESPACEUS United States 19->38 40 5 other IPs or domains 19->40 50 System process connects to network (likely due to code injection or exploit) 19->50 23 colorcpl.exe 19->23         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 23->52 54 Maps a DLL or memory area into another process 23->54 56 Tries to detect virtualization through RDTSC time measurements 23->56 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451/
Threat name:
ByteCode-MSIL.Trojan.Dcstl
Create hunting rule
Status:
Malicious
First seen:
2024-06-04 02:00:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
35
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rmsjgykxzlszqqwgfacn2u4yrlaocouk4pi3pouvackcuyepwriq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:cr12 rat spyware stealer trojan
Link:
https://tria.ge/reports/240604-h5g8dahc5w/
Behaviour
Gathers network information
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9a2b62e8-bc0e-4467-9d14-063508a094e4
Unpacked files
SH256 hash:
5354bc116f24a240380a1dd62ae528694ea44a96857ccdefe4bc98eea1c61067
MD5 hash:
89e349ef025a380916b91e997abe2487
SHA1 hash:
ad6eab55054ea27a970f6a075118665f10ea09bb
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/98cf41b2-1d83-4bc5-8aeb-469aa78c5df5/
Parent samples :
3cadb32dafeb421b94c09ca30944385141cbd4b032589b92bac948f27c287dfd
380c21fd37cafa3619196df7b6337783921656dbf58f1f54b63c74ad411421e0
93b04d266b5fddd03311c3d22a2a37ab451a3a0c6e1a28ebc2764ee5691e3291
93815b97bf6c09abc9e705096381dd25b658853e0751f7b95cc51123c251bcf2
8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451
709cb8b2628d52b597a87f74bd8867dd40cb54bd48940d159dd11930d9d76472
6155148c4e00c86359fd0cd7de903ed5631e68e2d6148cfcc88c914e4ed69a0a
cd45d1f7f7b3589b204955cfc0e36f0f9912f288486288799ecfaddadbc80f8a
371796cb762c7b686b0b81fe0028b06ac9908488ac0598ffe2fbbb7f66e675f7
SH256 hash:
4cc586fa23fe92b60cf18ce753b07dd97accf6b44241da7bf2e8c4edce6b2359
MD5 hash:
6a9392ca12a85458f826d7cd88d9701f
SHA1 hash:
cc731846946a02bb615a5db27025abfa44cb7c93
Link:
https://www.unpac.me/results/98cf41b2-1d83-4bc5-8aeb-469aa78c5df5/
SH256 hash:
4ed3b0a80feebddd6441815ea99334d7eab55813713a9aa2953412b767405bb8
MD5 hash:
e472f83fa7fb92da892e8ebda9d92112
SHA1 hash:
af8477c3b9530134042aed375122d395d91879e8
Link:
https://www.unpac.me/results/98cf41b2-1d83-4bc5-8aeb-469aa78c5df5/
SH256 hash:
55729815a6ad44739f2af0c7a7096f4153fcc109d440f23d0d609065e96b625e
MD5 hash:
82a8fdab718d8d9c1c82472293a72e3d
SHA1 hash:
042c0d08baf858128d32c01476380e142891456e
Link:
https://www.unpac.me/results/98cf41b2-1d83-4bc5-8aeb-469aa78c5df5/
SH256 hash:
8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451
MD5 hash:
19a43363822338c4a87fd7403c43fed4
SHA1 hash:
3ba5b289d064adfcb73e92c1444e7b60b7929fa0
Link:
https://www.unpac.me/results/98cf41b2-1d83-4bc5-8aeb-469aa78c5df5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451

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: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: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.

Malspam

Formbook

r00 90076db37a1c6abb6f27ab5471030a2ace6d6a2872530cb70873922d65b22493

Formbook

Executable exe 8b24936157cae59842c62804dd53988ac0e13a8ae3d1b7ba9500942a608fb451

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 90076db37a1c6abb6f27ab5471030a2ace6d6a2872530cb70873922d65b22493
  
Dropped by
MD5 35a5cfe43beba0a3f421a8088202cf29

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

Comments