MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de879af66bc51849ddf6e07f859a44c2c3fb7dd0707e3b6848901235bbea2db2. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
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SHA256 hash: de879af66bc51849ddf6e07f859a44c2c3fb7dd0707e3b6848901235bbea2db2
SHA3-384 hash: 67e7f1801f1381c0cf11dec91c397e0823c204bf257ac82828bc4b5070059975d4d217728c8944e170e0f7cf9a91847d
SHA1 hash: 61c12b6c0e2e5db0977e867df2ffaa748666c524
MD5 hash: be27498ebf3e2a27f9cc33c5fe24512a
humanhash: skylark-crazy-six-delaware
File name:PO FSH24012.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:797'184 bytes
First seen:2025-02-03 06:47:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:sY5avswecl9TRZM0gep6sH4xlOdj7aoJzy8ywSYM1Y96YvUtH38TR15oXtire:Nwe8u83rj7zNSS9653q5R
TLSH T12A05F1D83B696706DDA52A30D935EDB452BC1DA8B100F9E66FCC3B4B78AD6106D0CF42
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
File icon (PE):PE icon
dhash icon e0e698a08088a888 (20 x Formbook, 6 x AgentTesla, 3 x SnakeKeylogger)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
461
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO FSH24012.exe
Verdict:
No threats detected
Analysis date:
2025-02-03 07:00:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/92c189f4-7f02-461b-bb17-4ca3e8ada5ec

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.16327.22560.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a066ae2dcee78dd81923ce
Tags:
virus msil
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67a066a5d5f62a1c6292eee6/reports/40f44fd8-aee1-4fb5-a53d-b66607b37e83/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/de879af66bc51849ddf6e07f859a44c2c3fb7dd0707e3b6848901235bbea2db2
Result
Verdict:
SUSPICIOUS
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c45d930a-22c6-42bf-9c1f-2c86ea88b9a6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1605365
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Machine Learning detection for sample
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)
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)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1605365 Sample: PO FSH24012.exe Startdate: 03/02/2025 Architecture: WINDOWS Score: 100 30 www.cikolatasampuan.xyz 2->30 32 woodsplace.net 2->32 34 12 other IPs or domains 2->34 44 Suricata IDS alerts for network traffic 2->44 46 Antivirus detection for URL or domain 2->46 48 Multi AV Scanner detection for submitted file 2->48 52 4 other signatures 2->52 10 PO FSH24012.exe 3 2->10         started        signatures3 50 Performs DNS queries to domains with low reputation 30->50 process4 file5 28 C:\Users\user\AppData\...\PO FSH24012.exe.log, ASCII 10->28 dropped 13 PO FSH24012.exe 10->13         started        process6 signatures7 64 Maps a DLL or memory area into another process 13->64 16 dm6KCjjnhX8ZH9lQT.exe 13->16 injected process8 signatures9 42 Found direct / indirect Syscall (likely to bypass EDR) 16->42 19 clip.exe 13 16->19         started        process10 signatures11 54 Tries to steal Mail credentials (via file / registry access) 19->54 56 Tries to harvest and steal browser information (history, passwords, etc) 19->56 58 Modifies the context of a thread in another process (thread injection) 19->58 60 3 other signatures 19->60 22 dm6KCjjnhX8ZH9lQT.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 36 woodsplace.net 76.223.67.189, 50077, 50097, 50113 AMAZON-02US United States 22->36 38 www.sutbkn.info 47.83.1.90, 50176, 50177, 50178 VODANETInternationalIP-BackboneofVodafoneDE United States 22->38 40 9 other IPs or domains 22->40 62 Found direct / indirect Syscall (likely to bypass EDR) 22->62 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/de879af66bc51849ddf6e07f859a44c2c3fb7dd0707e3b6848901235bbea2db2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/de879af66bc51849ddf6e07f859a44c2c3fb7dd0707e3b6848901235bbea2db2/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-02-03 03:48:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=32dzv5tlyumetxpw4b7ylgseylb7w7oqob7dw2cisajdlo7kfwza._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250203-hkt2fatmev/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0c94b903-209f-4222-b4c7-d48ac2d2d62d
Unpacked files
SH256 hash:
de879af66bc51849ddf6e07f859a44c2c3fb7dd0707e3b6848901235bbea2db2
MD5 hash:
be27498ebf3e2a27f9cc33c5fe24512a
SHA1 hash:
61c12b6c0e2e5db0977e867df2ffaa748666c524
Link:
https://www.unpac.me/results/a5bc4644-df8d-4941-8b89-b34ea8967252/
SH256 hash:
340ec9d8ac2f74b2515f2294c0c894eb5a1a503846e63bd29ffb61c8c4f14262
MD5 hash:
0f61d6bfc28f6d7f06dff8a38b38958e
SHA1 hash:
016a88800e6ae83577981136b4bfc17979212a5d
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/a5bc4644-df8d-4941-8b89-b34ea8967252/
SH256 hash:
38541eb4232242beba4fc58def9f7885a4f22d30dc74ff6d5a4f3b42b73d74d4
MD5 hash:
7289ebc16c6c514f09ee93fd1986b35a
SHA1 hash:
0d3200f929cc557cc4ed5dc5d28380bd277cbc92
Link:
https://www.unpac.me/results/a5bc4644-df8d-4941-8b89-b34ea8967252/
SH256 hash:
a852c5d6496090ed322f35cbb982d7b5b3f351f913068ce4217a8ec2de14c502
MD5 hash:
933fa6a7ee540b6d07de886b686cfdff
SHA1 hash:
70069eb80303844e0481563b64b0e068d121ef3b
Link:
https://www.unpac.me/results/a5bc4644-df8d-4941-8b89-b34ea8967252/
SH256 hash:
4f5eae0426f27dbe67b3f2bd89ef5ae8a5785a980ec109af847bec084c1503d1
MD5 hash:
1bcf2ddf19239bac0084622cc04d6402
SHA1 hash:
302fdac30615ee58370a5abfc5b71238c099d2b0
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/a5bc4644-df8d-4941-8b89-b34ea8967252/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/de879af66bc5/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/de879af66bc51849ddf6e07f859a44c2c3fb7dd0707e3b6848901235bbea2db2

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
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.

Malspam

Formbook

Executable exe de879af66bc51849ddf6e07f859a44c2c3fb7dd0707e3b6848901235bbea2db2

(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

Comments