MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199. 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: c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199
SHA3-384 hash: 253dfbf2a0a3c9989e62bde25d7e83624edb67ff7c3bfd79e1659194d173f36dafffb305e7bfd165a0cb338e9c8ee8d2
SHA1 hash: 560fe3730f004369e25f455227a1a580c87c0154
MD5 hash: 5824d7b76dcd8c106392e0739132a724
humanhash: utah-carpet-september-colorado
File name:cca9sXT33VsAEdu.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:595'968 bytes
First seen:2024-06-17 13:35:30 UTC
Last seen:2024-06-24 11:51:29 UTC
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:HfR/iFIsPAb/z/rNj3qPpZMshEtS0XEKz1MciRtiU9TAv9TiuQLsKOQwk58e/:/RkIKyb5j3qxOsAEKhMc8XsF2eKOQj
TLSH T191C423047BE44A73CEF8C5FA5AB1055153727F516418F5CD6CFA218EACEAF80A2216E3
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
320
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199.exe
Verdict:
Malicious activity
Analysis date:
2024-06-17 14:10:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/05fb810b-d614-4c9b-b0c8-d454ddfab1bc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.23871.6896.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66703d1589a0563951fa3488win7simulatehigh_evasion
Tags:
Execution Generic Network Formbook
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/66703bcbeae3878d8f3a0732/reports/5bab204d-ed6f-4eff-ba88-fb3838878705/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c6c8cce8-2e20-4ab3-9844-bc8ce13ae229
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1458353
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
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
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
Performs DNS queries to domains with low reputation
Query firmware table information (likely to detect VMs)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1458353 Sample: cca9sXT33VsAEdu.exe Startdate: 17/06/2024 Architecture: WINDOWS Score: 100 36 www.kjsdhklssk51.xyz 2->36 38 www.b0ba138.xyz 2->38 40 15 other IPs or domains 2->40 56 Snort IDS alert for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 64 8 other signatures 2->64 11 cca9sXT33VsAEdu.exe 3 2->11         started        15 explorer.exe 54 94 2->15         started        signatures3 62 Performs DNS queries to domains with low reputation 38->62 process4 dnsIp5 34 C:\Users\user\...\cca9sXT33VsAEdu.exe.log, ASCII 11->34 dropped 76 Tries to detect virtualization through RDTSC time measurements 11->76 78 Injects a PE file into a foreign processes 11->78 80 Switches to a custom stack to bypass stack traces 11->80 18 cca9sXT33VsAEdu.exe 11->18         started        46 www.real-estate-96841.bond 185.53.179.90, 49719, 80 TEAMINTERNET-ASDE Germany 15->46 82 System process connects to network (likely due to code injection or exploit) 15->82 84 Query firmware table information (likely to detect VMs) 15->84 file6 signatures7 process8 signatures9 48 Modifies the context of a thread in another process (thread injection) 18->48 50 Maps a DLL or memory area into another process 18->50 52 Sample uses process hollowing technique 18->52 54 2 other signatures 18->54 21 explorer.exe 23 1 18->21 injected process10 dnsIp11 42 www.cpuk-finance.com 185.151.30.212, 49713, 49724, 80 TWENTYIGB United Kingdom 21->42 44 northshorehousekeeping.com 76.223.105.230, 49715, 80 AMAZON-02US United States 21->44 66 System process connects to network (likely due to code injection or exploit) 21->66 25 cmmon32.exe 21->25         started        28 WerFault.exe 21 21->28         started        signatures12 process13 signatures14 68 Modifies the context of a thread in another process (thread injection) 25->68 70 Maps a DLL or memory area into another process 25->70 72 Tries to detect virtualization through RDTSC time measurements 25->72 74 Switches to a custom stack to bypass stack traces 25->74 30 cmd.exe 1 25->30         started        process15 process16 32 conhost.exe 30->32         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-06-17 13:36:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zgv47lmdpkejqvp2zbv3g5xrdibyhuwnsvwbhnavi3tc3vk7ugmq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dy13 rat spyware stealer trojan
Link:
https://tria.ge/reports/240617-qv874sxcmj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
cab4d725121ede8a40aac7d8a75e868f2a3fee4bca06960c2ef0794d97782317
MD5 hash:
2eeb33931c6debef2a6171982e3c8cef
SHA1 hash:
0f34ac4a440dd27aec13deffa213d805629fa176
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/7d511c7e-40a9-4c06-8445-99c9eb29b271/
Parent samples :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 hash:
91dc816cc893ff6595e2ae33adf7a8a62a8b80b01c454acad97aca31d27fe3a8
MD5 hash:
b8110a1afba93c709d67cd5b0e705b99
SHA1 hash:
ce3d381ad03757cd36595fae37895b24609de75b
Link:
https://www.unpac.me/results/7d511c7e-40a9-4c06-8445-99c9eb29b271/
SH256 hash:
c4b12039bfed4c8bbb9d1376004da60480e49a379a84c9e60565bbd5caef07b2
MD5 hash:
144f7fcaaa3b81b0a3706203a7f1add8
SHA1 hash:
4bc14913fd448b4a2664e1e9ba664a1c6e9a9194
Link:
https://www.unpac.me/results/7d511c7e-40a9-4c06-8445-99c9eb29b271/
SH256 hash:
ecf1257cb2839319c722daf5323ba2ed7060368b46f84610b6b6823323297826
MD5 hash:
cba51dcdec84ac14ce1eaf2ede86f28b
SHA1 hash:
2e77e64525600817d96b4d9c497135c989e608ee
Link:
https://www.unpac.me/results/7d511c7e-40a9-4c06-8445-99c9eb29b271/
SH256 hash:
c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199
MD5 hash:
5824d7b76dcd8c106392e0739132a724
SHA1 hash:
560fe3730f004369e25f455227a1a580c87c0154
Link:
https://www.unpac.me/results/7d511c7e-40a9-4c06-8445-99c9eb29b271/
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/c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199

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

Executable exe c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199

(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 (HIGH_ENTROPY_VA)high

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