MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb
SHA3-384 hash: 878e5864f06478ba0f80af06852c1722b36316d42d9580b0d31066aebe98b5c4f3201db8dd43c6eb33f8f2d66956400e
SHA1 hash: 509fa3635de1de3d6ed22535f79532e85e5fb625
MD5 hash: a9d3bb0da3b9e0e7e58d67bd854600e1
humanhash: carbon-purple-green-snake
File name:P240842_P240843.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:694'272 bytes
First seen:2024-05-14 07:33:17 UTC
Last seen:2024-05-14 08:31:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:8dYMjhvPie/rByY77777777777770k1XD6iOyoFBeqhHkiQ9KnefFbVETaGo24cT:8dYMFniyy01X+leDKnefFbVETaGo21z/
TLSH T177E4010035345A23E73ED2F2516560325BF61D97E660E7D82DCA6CCB36FEBC85009AA7
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 98186169696b338a (6 x AgentTesla, 5 x Formbook, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
316
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb.exe
Verdict:
Malicious activity
Analysis date:
2024-05-14 07:49:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/584ca3ad-7850-48e9-be90-70f699cdd1c5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.8088.8600.UNOFFICIAL
Create hunting rule

Gathering data
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:
packed
Link:
https://www.filescan.io/uploads/664313f21c9796b80abec052/reports/5445610d-7771-4085-b6f6-f4f2c9162462/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb
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/6fb3dcdd-9868-473c-8568-da48a66c9169
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1441102
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1441102 Sample: P240842_P240843.exe Startdate: 14/05/2024 Architecture: WINDOWS Score: 100 30 www.xn--2o2b110a3rh.com 2->30 32 www.whitecoatprivilege.com 2->32 34 12 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 P240842_P240843.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 P240842_P240843.exe 11->14         started        17 P240842_P240843.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 70 1 14->19 injected process8 dnsIp9 36 durkal.online 91.184.0.200, 49715, 80 HOSTNETNL Netherlands 19->36 38 www.xn--2o2b110a3rh.com 104.21.27.12, 49717, 80 CLOUDFLARENETUS 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 WWAHost.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/b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2024-05-14 02:55:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xb4acddfffnmir7nwusjqjn4r32lvbzltjmewpp34swy6jldjp5q._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ht3d rat spyware stealer trojan
Link:
https://tria.ge/reports/240514-jd4gzafc6s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
d014aeb8a0a85efd7daf865d40e9d50dcb25b0b6c307d181f0ea17e753486a95
MD5 hash:
4d1d5f4e4a8df6272c45fb395ffea284
SHA1 hash:
a5bedf6a607d9a700b5b723be2080165de71d32f
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/a69fa952-bc01-447f-8937-11966dd46907/
Parent samples :
3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e
f23b020b5a3aab42525b80bef3474df287cc7fa80dc3c13229c571e32fb99fe9
b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb
SH256 hash:
3e766b097d0a2c2d2be696cc6a21037ae6508e9b4f536996927771f894b0dad6
MD5 hash:
5ca140a333e7df7e9207a237d55d9a32
SHA1 hash:
9150c59998fbdd158d108023c5aee73ce5f170f2
Link:
https://www.unpac.me/results/a69fa952-bc01-447f-8937-11966dd46907/
SH256 hash:
fd3f1f3f0c984361bb23b2f6ba22a4bbd636095bf6e9d0c31d77b5ccfceed307
MD5 hash:
1e504d0d93436a776666cc8236d65844
SHA1 hash:
834490f9be03a0814c6460f5aae33af12e83b8f5
Link:
https://www.unpac.me/results/a69fa952-bc01-447f-8937-11966dd46907/
SH256 hash:
3efb7fb53197e84ea3f27fde2896b0a6b562a48d5aa9718d73cec6a0048570ea
MD5 hash:
0d7bcedec3900018cfcaa66dbeabb2a8
SHA1 hash:
2a52f9f9c10ed457ae29e26e0c22dd017fa7dced
Link:
https://www.unpac.me/results/a69fa952-bc01-447f-8937-11966dd46907/
SH256 hash:
d7d9061c604387a231802e8c76f823444531bc5c8c67215c583aa20dd1aa6fe5
MD5 hash:
eedfe4ea6f6d5645eb254493e38c9caf
SHA1 hash:
1647f9208a9a994cb1c20ea3cfa91f5472803a05
Link:
https://www.unpac.me/results/a69fa952-bc01-447f-8937-11966dd46907/
SH256 hash:
b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb
MD5 hash:
a9d3bb0da3b9e0e7e58d67bd854600e1
SHA1 hash:
509fa3635de1de3d6ed22535f79532e85e5fb625
Link:
https://www.unpac.me/results/a69fa952-bc01-447f-8937-11966dd46907/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b878010c6529/report/overview.html
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/b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb

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.

Web download

Formbook

Executable exe b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2849702/
  
Delivery method
Distributed via web download

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