MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b834ce0a8404956a934c2b2be8441439b5b049179fe94788b5007fda7f2c2fa. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: 4b834ce0a8404956a934c2b2be8441439b5b049179fe94788b5007fda7f2c2fa
SHA3-384 hash: 12d96c3987a9713d3fe559d81ebc6ce31a879110a3cac0ac16194742a815718f400aedbf22ecee1b8cfb0940a41abf52
SHA1 hash: e13ea688641883a2309713573491102256255938
MD5 hash: 6e7b278001efd3d37a9d61696162f262
humanhash: moon-stream-emma-four
File name:Payment Invoice 0102322.exe
Download: download sample
Signature Formbook
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File size:623'104 bytes
First seen:2022-12-21 05:17:43 UTC
Last seen:2022-12-22 10:53:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:4BMPrHQL6tM/C7m/DSxlu089IKKuTXB+lM9FD5I2t2e:Pl02K11+i9FDV
TLSH T16DD4124C31B84714DDA887BED672862487F4F5122962E74E5DCF30EB0A9278E1E1673B
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon daa298d6d6b8a294 (4 x Formbook, 3 x AgentTesla, 1 x Loki)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
187
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Payment Invoice 0102322.exe
Verdict:
Malicious activity
Analysis date:
2022-12-21 05:18:53 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/14d2d22b-2f21-45e0-982a-7e89ab0dc0a3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/348607/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.64392888.32213.44.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
67%
Tags:
packed
Link:
https://www.filescan.io/uploads/63a2970ad6459c0de11efc46/reports/b0daa6b2-831f-4e3d-a3a1-719ed5ad4972/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f45f7be7-d51e-4d01-822b-f4c591c72bcf
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1138438
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Initial sample is a PE file and has a suspicious name
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)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 771164 Sample: Payment Invoice 0102322.exe Startdate: 21/12/2022 Architecture: WINDOWS Score: 100 34 Multi AV Scanner detection for domain / URL 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 8 other signatures 2->40 8 Payment Invoice 0102322.exe 3 2->8         started        process3 file4 22 C:\Users\...\Payment Invoice 0102322.exe.log, ASCII 8->22 dropped 50 Injects a PE file into a foreign processes 8->50 12 Payment Invoice 0102322.exe 8->12         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 12->52 54 Maps a DLL or memory area into another process 12->54 56 Sample uses process hollowing technique 12->56 58 Queues an APC in another process (thread injection) 12->58 15 explorer.exe 12->15 injected process8 dnsIp9 24 www.www64421.com 192.74.252.154, 49703, 80 PEGTECHINCUS United States 15->24 26 www.pubfive.xyz 162.213.255.142, 49707, 49708, 49709 NAMECHEAP-NETUS United States 15->26 28 2 other IPs or domains 15->28 30 System process connects to network (likely due to code injection or exploit) 15->30 32 Performs DNS queries to domains with low reputation 15->32 19 cmstp.exe 13 15->19         started        signatures10 process11 signatures12 42 Tries to steal Mail credentials (via file / registry access) 19->42 44 Tries to harvest and steal browser information (history, passwords, etc) 19->44 46 Deletes itself after installation 19->46 48 2 other signatures 19->48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b834ce0a8404956a934c2b2be8441439b5b049179fe94788b5007fda7f2c2fa/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-12-20 02:14:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
23 of 40 (57.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jobuzyfiibevnkjuykzl5bcbionvwberph7ji6elkad73j7syl5a._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:snky rat spyware stealer trojan
Link:
https://tria.ge/reports/221221-fy9ypsbf97/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Formbook
Unpacked files
SH256 hash:
5404fc32f356990369ac9a74be7b1a43e7c561b5f660c0abb687a3f06dc9aa14
MD5 hash:
4c0307f77f0161e0e8eb30c86b7f2548
SHA1 hash:
b3b2424c96244f27defa6f492476aaa5fd25cb19
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b4285e75-7c8f-4e2e-b044-233fe787484f/
Parent samples :
75b803222917f13da307cd36a22b56e0192860ede2c368cab45d53cef5f4422f
77a99df0938f000db363d3f123fed3a7e6c6b9ebce4f9f59d68a277327d15eb4
d1dd1f80a7b08c0b8ee7c3067df3d35dadc6af79b02761ccf70dfcaa53f76cd7
4b01d8e4729b07277f8f71037f9fbda1f8d817d9688850d941e7832727bb0276
3276e7ff57ccbea104651066c1d45301d52fbfce23d0d48f5238d82a51abd852
590277f960d74add2860c7332ae427eaea968bdf3bb4d5a8da5563a3115b16f7
51b1ea5740bc66a8e008f46ee5583c422e7a5302cb1d7737654e84666883ce11
4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc
6ff54e94c6557ae213d67159c8c8bbdc84079801ba263631f9c7a798f660eaad
4b834ce0a8404956a934c2b2be8441439b5b049179fe94788b5007fda7f2c2fa
SH256 hash:
1ab4a6e607afd06069dd9cd1ff07768f5cb7691b2aa7e4ebf5e19a2a5998c53e
MD5 hash:
ea8f822532135bf22f257bb18832bc25
SHA1 hash:
91999663771403e1e6f67e468ec58585bb5731b0
Link:
https://www.unpac.me/results/b4285e75-7c8f-4e2e-b044-233fe787484f/
SH256 hash:
3f11da1d02b4f19787882f24fc9c646dca33ac66a48971fedd73f18a9686bf71
MD5 hash:
551d40971cef3fdb74eed70e65d6080b
SHA1 hash:
fa4b8cb0b6e0080af84aa99b2ebb04d884dd5952
Link:
https://www.unpac.me/results/b4285e75-7c8f-4e2e-b044-233fe787484f/
SH256 hash:
fc6485350cf55dc14ecbfd9b91b7a9979f61023b4104101e9f351caa6c73abaa
MD5 hash:
6c3fdb2b5d93cf814ea1b6ca05a0efcf
SHA1 hash:
f8ae5f9fa1c9b6b0e47b2f0873d2ee3373e0ebf5
Link:
https://www.unpac.me/results/b4285e75-7c8f-4e2e-b044-233fe787484f/
SH256 hash:
1ffa11bf619586b2fefc0ea3ab68d19fe0d2c854f3c7fb71ddcb66e83e1759bb
MD5 hash:
97d74ead9f194296e00e14f323d21739
SHA1 hash:
da251aa15c309609f6d20a8aedc14237713552a3
Link:
https://www.unpac.me/results/b4285e75-7c8f-4e2e-b044-233fe787484f/
SH256 hash:
ff1b42ea7d56a37eae801adbddb7116f52a4664c0b41302736f522852edc2747
MD5 hash:
89ac57478044c57c7195943116a521e0
SHA1 hash:
1ff2bafeed795423e3538d810bda8e1e3fcdcfa5
Link:
https://www.unpac.me/results/b4285e75-7c8f-4e2e-b044-233fe787484f/
SH256 hash:
4b834ce0a8404956a934c2b2be8441439b5b049179fe94788b5007fda7f2c2fa
MD5 hash:
6e7b278001efd3d37a9d61696162f262
SHA1 hash:
e13ea688641883a2309713573491102256255938
Link:
https://www.unpac.me/results/b4285e75-7c8f-4e2e-b044-233fe787484f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/4b834ce0a8404956a934c2b2be8441439b5b049179fe94788b5007fda7f2c2fa

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: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 4b834ce0a8404956a934c2b2be8441439b5b049179fe94788b5007fda7f2c2fa

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/348607/

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