MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf
SHA3-384 hash: ff0fd0d17498a146d3df557d603bcbfb8745460877d8ea1539028c27bf7748edf1da4801412c1e31a21fed7f398d946f
SHA1 hash: 3d1a1d9f85995fcc952acd093c49294396a6ff61
MD5 hash: 67e9aeecebbbc227aa69898b02c634f2
humanhash: music-grey-solar-maryland
File name:Rockwell27-08-23.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:647'680 bytes
First seen:2023-11-03 07:58:12 UTC
Last seen:2023-11-03 09:20:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:CbWJp09HUmSeuRx8OHQ3SEZA4leOSd7q:CbF9POKZAZj
Threatray 8 similar samples on MalwareBazaar
TLSH T1A1D40117BB25EFB9D13B47F63C11941046B5EE1EA860E75868A637E29C32703807DB1B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 31f098b29298f031 (53 x AgentTesla, 30 x Formbook, 12 x RedLineStealer)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
289
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/457976/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6544a854bc703e36b098f782/reports/396552da-f168-4f31-89e1-99b666392377/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf
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:
QuanLyKo Loader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/149854ec-a022-4a78-a113-803ac0b9ab3f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1336594
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Deletes itself after installation
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 domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1336594 Sample: Rockwell27-08-23.exe Startdate: 03/11/2023 Architecture: WINDOWS Score: 100 29 www.youngtwin.xyz 2->29 31 www.relxtoday.com 2->31 33 7 other IPs or domains 2->33 49 Multi AV Scanner detection for domain / URL 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 8 other signatures 2->55 10 Rockwell27-08-23.exe 3 2->10         started        signatures3 process4 signatures5 59 Injects a PE file into a foreign processes 10->59 13 Rockwell27-08-23.exe 10->13         started        process6 signatures7 61 Maps a DLL or memory area into another process 13->61 63 Queues an APC in another process (thread injection) 13->63 16 PvKKAZZcKeIuadV.exe 13->16 injected process8 process9 18 ipconfig.exe 13 16->18         started        signatures10 41 Tries to steal Mail credentials (via file / registry access) 18->41 43 Tries to harvest and steal browser information (history, passwords, etc) 18->43 45 Deletes itself after installation 18->45 47 4 other signatures 18->47 21 explorer.exe 7 1 18->21 injected 25 PvKKAZZcKeIuadV.exe 18->25 injected 27 firefox.exe 18->27         started        process11 dnsIp12 35 www.relxtoday.com 110.34.164.35, 49736, 49737, 49738 VPLSVPLSASIATH Thailand 21->35 37 www.doonc.xyz 91.195.240.123, 49740, 49741, 49742 SEDO-ASDE Germany 21->37 39 4 other IPs or domains 21->39 57 System process connects to network (likely due to code injection or exploit) 21->57 signatures13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-08-28 05:10:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wwnm7nnsqdftuefq7qgxlamhouaggclnyzuqw3jfigwqg24bnlhq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
581c56d24fa3b9fa4d7e3d3e62b1b66206a8ec8b4ee35e11c6dda562f8e6e639
Formbook
a5704ad9bb211464dff882a76765384a2e4ed3cf7584a8ca38136304d6799cc4
Formbook
b334948991343e7c83707d03ba19c913841e49022c74c1f890f036bdbc04071c
Formbook
b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf
Formbook
e36f208df0d1c7cc3079abcb4e0d97caa7ae44fcf5603f73870043f146dd6216
Formbook
f5aa5998a1ce5f16b177ba33712da9c3049fdb0c9ddedb1031dfd0233372ab1d
Formbook
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231103-jvej6seb6w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
7849b6c0f255f37092349b1755b3d03897c472d0867462a154786ace92616ee1
MD5 hash:
ae2ec9d68f3a1dc6d375b8c0356f8d10
SHA1 hash:
cca41540b6a4504dcaa6930900aeaf19466ad173
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/a2d18dad-079e-4ef4-b1de-63ae9c7a9ce6/
Parent samples :
a5704ad9bb211464dff882a76765384a2e4ed3cf7584a8ca38136304d6799cc4
b334948991343e7c83707d03ba19c913841e49022c74c1f890f036bdbc04071c
b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf
581c56d24fa3b9fa4d7e3d3e62b1b66206a8ec8b4ee35e11c6dda562f8e6e639
SH256 hash:
a169ff30325aba709ef138d002d5def8d5def5729cafc3a856e56f577ccde034
MD5 hash:
982a462675182d6a83ad143da4166b54
SHA1 hash:
7df90c8b6fd3f501988367b7a81b94a0c0d93b0c
Link:
https://www.unpac.me/results/a2d18dad-079e-4ef4-b1de-63ae9c7a9ce6/
SH256 hash:
892761d55890a0af5517cc5da1b7b251539f9d1b5e126616def3b66b60b25f50
MD5 hash:
1381fe1ab71c80397a78422051edbd51
SHA1 hash:
e258e5a6e54f6314944e713515d22906fa4520f7
Link:
https://www.unpac.me/results/a2d18dad-079e-4ef4-b1de-63ae9c7a9ce6/
SH256 hash:
0fe2af939fae802fcedf94ddb7acf6254e590010a79aff06532578d3fcaed21e
MD5 hash:
a06fbdc5e3a3637536007b99e28d5304
SHA1 hash:
478edda6ab87ada0a127a142be816e2a8cfaa19f
Link:
https://www.unpac.me/results/a2d18dad-079e-4ef4-b1de-63ae9c7a9ce6/
SH256 hash:
fc7c8c7830cd5796f1ccb5da2b1f9debacd6966e82c5ad7357110c85ce0a0c76
MD5 hash:
83dc825bc707245c298941ab807b1c0e
SHA1 hash:
25f78c4dcfdf0582d2ec1d8625b84454b8e35df1
Link:
https://www.unpac.me/results/a2d18dad-079e-4ef4-b1de-63ae9c7a9ce6/
SH256 hash:
b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf
MD5 hash:
67e9aeecebbbc227aa69898b02c634f2
SHA1 hash:
3d1a1d9f85995fcc952acd093c49294396a6ff61
Link:
https://www.unpac.me/results/a2d18dad-079e-4ef4-b1de-63ae9c7a9ce6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf

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: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 b59acfb5b280cb3a10b0fc0d758187750063096dc6690b6d2541ad036b816acf

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/457976/

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