MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f
SHA3-384 hash: 0f861ee30dc2c624c16293b4d0aada9abcd43fd4804f90f4fc14d80bf621edb1640eef8f189ccf006bb98977de416c66
SHA1 hash: 1115f6d1e5ae3b6f1e4e8fb29fd47f39d0fb1af6
MD5 hash: 9089b794f2e3b5089859fcaf17e0b91a
humanhash: chicken-charlie-sink-stream
File name:a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f
Download: download sample
Signature Formbook
Create hunting rule
File size:776'192 bytes
First seen:2025-04-08 08:24:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Id1NYyOn6nzxhTG9hSrvQNAE6kEMBooEK26j2eevtdYfAVvz54XRs8EOH2/:sY9n6nEhSzQkMBlq66tCIkR+OHI
Threatray 1'967 similar samples on MalwareBazaar
TLSH T15DF40188A208D612C6955BB80EB0F17603BD1EEEB505D3479FD9BDEF7D6AB108C04396
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
321
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f
Verdict:
Suspicious activity
Analysis date:
2025-04-08 12:05:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f1df3622-3712-44f3-aff8-daf10623533d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f4df76a695a0cd1facada4
Tags:
virus krypt msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67f4dd7ab070fb3f94606bab/reports/56139e8a-40e5-4227-a8ed-ad133f1fd9ad/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/34c3b054-205b-4dfd-9a1a-59766b689270
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1659770
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1659770 Sample: Gn1nRl7S0J.exe Startdate: 08/04/2025 Architecture: WINDOWS Score: 100 70 www.xrhope.xyz 2->70 72 www.mylivingbio.online 2->72 74 2 other IPs or domains 2->74 80 Suricata IDS alerts for network traffic 2->80 82 Antivirus detection for URL or domain 2->82 84 Antivirus / Scanner detection for submitted sample 2->84 88 7 other signatures 2->88 10 Gn1nRl7S0J.exe 7 2->10         started        14 LwgUFK.exe 5 2->14         started        16 svchost.exe 1 2->16         started        signatures3 86 Performs DNS queries to domains with low reputation 70->86 process4 dnsIp5 54 C:\Users\user\AppData\Roaming\LwgUFK.exe, PE32 10->54 dropped 56 C:\Users\user\...\LwgUFK.exe:Zone.Identifier, ASCII 10->56 dropped 58 C:\Users\user\AppData\Local\...\tmp7158.tmp, XML 10->58 dropped 60 C:\Users\user\AppData\...behaviorgraphn1nRl7S0J.exe.log, ASCII 10->60 dropped 94 Uses schtasks.exe or at.exe to add and modify task schedules 10->94 96 Adds a directory exclusion to Windows Defender 10->96 19 Gn1nRl7S0J.exe 10->19         started        22 powershell.exe 23 10->22         started        24 powershell.exe 23 10->24         started        26 schtasks.exe 1 10->26         started        98 Antivirus detection for dropped file 14->98 100 Multi AV Scanner detection for dropped file 14->100 102 Injects a PE file into a foreign processes 14->102 28 schtasks.exe 1 14->28         started        30 LwgUFK.exe 14->30         started        62 127.0.0.1 unknown unknown 16->62 file6 signatures7 process8 signatures9 90 Maps a DLL or memory area into another process 19->90 32 ARAcy3YNeCkeQ1lqOHg.exe 19->32 injected 92 Loading BitLocker PowerShell Module 22->92 35 WmiPrvSE.exe 22->35         started        37 conhost.exe 22->37         started        39 conhost.exe 24->39         started        41 conhost.exe 26->41         started        43 conhost.exe 28->43         started        process10 signatures11 76 Found direct / indirect Syscall (likely to bypass EDR) 32->76 45 TSTheme.exe 32->45         started        process12 signatures13 104 Tries to steal Mail credentials (via file / registry access) 45->104 106 Tries to harvest and steal browser information (history, passwords, etc) 45->106 108 Modifies the context of a thread in another process (thread injection) 45->108 110 3 other signatures 45->110 48 ARAcy3YNeCkeQ1lqOHg.exe 45->48 injected 52 firefox.exe 45->52         started        process14 dnsIp15 64 www.mylivingbio.online 208.91.197.27, 49957, 49958, 49959 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 48->64 66 miracoins.org 66.235.200.147, 49847, 80 CLOUDFLARENETUS United States 48->66 68 www.xrhope.xyz 13.248.169.48, 49953, 49954, 49955 AMAZON-02US United States 48->68 78 Found direct / indirect Syscall (likely to bypass EDR) 48->78 signatures16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f/
Threat name:
Win32.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2025-03-25 12:32:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uhaeabf6pb63q5dgyc4stqrhqllhfmr7pxstarqhnlsncpii65hq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
Similar samples:
1081e4e28ab35a70584e49c4a5dbd783b02c9380e797c5e542d93f5ebbda9ab5
Formbook
22c52e17a54bd53ba24aadbfdaf2bccb14824594abe0b705e51f7c948296b1fc
Formbook
903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490
Formbook
a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f
Formbook
a9d823a1d524fe4474e1c48b6aa13c6bc9833214ffa912890f54fc7d0c0111e5
Formbook
error
Formbook
f0b540b1edbd94b9a7b330505529477cbbf6742ad78008979661d30b8f54731a
Formbook
+ 1'957 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250408-ka2dwa1zgv/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/530a5259-1a37-4583-9d13-218e4c983688
Unpacked files
SH256 hash:
a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f
MD5 hash:
9089b794f2e3b5089859fcaf17e0b91a
SHA1 hash:
1115f6d1e5ae3b6f1e4e8fb29fd47f39d0fb1af6
Link:
https://www.unpac.me/results/81d14f3d-0293-4697-bbbb-fa784cfa1049/
SH256 hash:
bbac028c0470bfe98177dde3bbd82b48a316a992fb51797a79e1aca9064bfb9f
MD5 hash:
2e794cc77833e2e5f4a8514a9014e5e8
SHA1 hash:
288d60c2f36ce703122034fec75f56096595a629
Link:
https://www.unpac.me/results/81d14f3d-0293-4697-bbbb-fa784cfa1049/
SH256 hash:
aaecb8e939e18438f53f39d5ea08d119d339e5c5302b230eb19290867aece2e8
MD5 hash:
967e6e6dc60488387ea402d0bc79a126
SHA1 hash:
36f80534ac6da5b7421d0ec3a7bff2db4a0c963a
Link:
https://www.unpac.me/results/81d14f3d-0293-4697-bbbb-fa784cfa1049/
SH256 hash:
b5733359bdd6142d59ff12dde8ab9d1e9981e728da60035bcbf1dacac6628444
MD5 hash:
830b12203ef9f740b8c9b3cfc5ea42b6
SHA1 hash:
bb28bb9b00405d59cb9f76771db8511f08b2c30b
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/81d14f3d-0293-4697-bbbb-fa784cfa1049/
SH256 hash:
2ad87a4ee25ed15d916c4e375811a28139e6b64f1de89570a6559b1d449c4dc4
MD5 hash:
f99654a85fca146a94db54088aa5916f
SHA1 hash:
5e9dbd942eee85773d1df85c1af206a290391cf8
Link:
https://www.unpac.me/results/81d14f3d-0293-4697-bbbb-fa784cfa1049/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1c04004be78/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/a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f

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: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: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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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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