MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66
SHA3-384 hash: 56da11c79f9983648c5a107dc398f7178bfbbcf01c4f09925a7883ba2954b4c2732ee1da4de807bbe5037f0d854a8104
SHA1 hash: 8eaa97b08d379308ab7ce15f470871b16d1f51ce
MD5 hash: 91ba4641d48f24afdbb61cb747b08dbc
humanhash: butter-coffee-helium-equal
File name:Offer Request.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:721'408 bytes
First seen:2024-02-01 08:45:19 UTC
Last seen:2024-02-01 10:22:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:oN+rd53rD22q8nGsuvsfwN//T9v56xNQL1B6TjKIOcT:oU3rDIouv9nQeCfKIOc
TLSH T148E4125413BD1B52D5BD97FA3820809047F6B8A96632E31D2FC5A4EC2F62B80CB51F97
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 13333b33333b3b23 (11 x AgentTesla, 5 x Formbook, 2 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
282
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/473982/
Detection(s):
SecuriteInfo.com.Win32.InjectorX-gen.12578.16927.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd explorer hook keylogger lolbin packed regedit
Link:
https://www.filescan.io/uploads/65bb5a5540cbb80fe04a993f/reports/845ae1d1-6429-438f-b5b3-5432e8814b3a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66
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/3f3d648d-1d93-4fd9-a9ce-7d26acbd0e5f
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1384678
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
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 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)
Sample uses process hollowing technique
Sigma detected: Suspect Svchost Activity
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: 1384678 Sample: Offer_Request.exe Startdate: 01/02/2024 Architecture: WINDOWS Score: 100 34 www.yxys.xyz 2->34 36 xflic.vfebqeulvm35.com 2->36 38 13 other IPs or domains 2->38 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 50 13 other signatures 2->50 11 Offer_Request.exe 3 2->11         started        signatures3 48 Performs DNS queries to domains with low reputation 34->48 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 Offer_Request.exe 11->14         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 17 explorer.exe 55 1 14->17 injected process8 dnsIp9 28 xflic.vfebqeulvm35.com 20.239.67.91, 49743, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 17->28 30 www.aitaoguanwang.com 156.224.160.71, 49745, 80 COMING-ASABCDEGROUPCOMPANYLIMITEDHK Seychelles 17->30 32 4 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 21 svchost.exe 17->21         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-02-01 02:20:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uiuguwbl5kqmin4xgebwmtfrf2z2ltvsaynyzj2o3gsonad7brta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hi5f rat spyware stealer trojan
Link:
https://tria.ge/reports/240201-kpbrrsaabp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Blocklisted process makes network request
Formbook payload
Formbook
Unpacked files
SH256 hash:
82d6192a353b63eaacd89e1169f22dc9c462dc545952d38735441467ec7bb318
MD5 hash:
408697526c2d60b457da92c55d744f29
SHA1 hash:
390446551ecf6dcd162700afc0d74b2b60670590
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/83d5dd8b-63a9-4340-ba41-7efee8ede7fd/
Parent samples :
938e74e2208f8d67dd6e3d8cabb73682e0d160f6270171fac3af80f7712304ef
a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66
48974d28f3869787358567dd2ae6295548b0fa3fc29b6e63af567f494a612aa2
SH256 hash:
a91462e9c8e5d78d4047a80eb89a38c6e76e5d4cf6ac8ff7142e19bb7ecfbb82
MD5 hash:
b3200a8295f2098fa0078754ab6728ce
SHA1 hash:
b84d3cbebfd2eb9822664ca47fe56e6ee95e0ddc
Link:
https://www.unpac.me/results/83d5dd8b-63a9-4340-ba41-7efee8ede7fd/
SH256 hash:
c3f7a9a1f22057747d62ac0436211ed72fd7c1656294e300a5f09c929de0d2a5
MD5 hash:
29a61619de04761d8fb86bb3815557db
SHA1 hash:
695994a8743250926a0f65ccf9eb342fedd8783b
Link:
https://www.unpac.me/results/83d5dd8b-63a9-4340-ba41-7efee8ede7fd/
SH256 hash:
fd4e2d320d47c715558eb0683c6774dab4479b06407b5624f82ec42c1d080182
MD5 hash:
8c67f174f129b510e385db6a66541a87
SHA1 hash:
5cbe745ff9b65e81ff5dea5a2949a5923453b012
Link:
https://www.unpac.me/results/83d5dd8b-63a9-4340-ba41-7efee8ede7fd/
SH256 hash:
fe205e53781ac26e952f6c0a40fc84d34449d023191f159b9bc6d9a4e77240bc
MD5 hash:
8c085a0a56688a74c03124f6ca4caa9a
SHA1 hash:
0a703b7836d2ea57d81f9f5f3ff3b2d85328ddb3
Link:
https://www.unpac.me/results/83d5dd8b-63a9-4340-ba41-7efee8ede7fd/
SH256 hash:
a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66
MD5 hash:
91ba4641d48f24afdbb61cb747b08dbc
SHA1 hash:
8eaa97b08d379308ab7ce15f470871b16d1f51ce
Link:
https://www.unpac.me/results/83d5dd8b-63a9-4340-ba41-7efee8ede7fd/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a2286a582bea/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/a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66

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 a2286a582beaa0c437973103664cb12eb3a5ceb2061b8ca74ed9a4e6807f0c66

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/473982/

Comments