MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b37cac9c7d53adb7e52b5e9d83747d11481c66c857b2d9347570d464c113833e. 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
| SHA256 hash: | b37cac9c7d53adb7e52b5e9d83747d11481c66c857b2d9347570d464c113833e |
|---|---|
| SHA3-384 hash: | 049e2fa48ef81a8d8c63c3038370e6b5e391111eece6ea85b587a1ee353c950c8d7ff84ac65b4b5f2d6558e1bdb5e96b |
| SHA1 hash: | 6ab3cdc4370c3258a066a27070b672606b7d300c |
| MD5 hash: | 265614ba6db16763b0de03bf75d21afd |
| humanhash: | snake-music-west-ten |
| File name: | 4361229544422.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 520'704 bytes |
| First seen: | 2021-11-30 12:29:18 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:ZGDRegLZOHFzS4OLnft9xImm6v5nc5k1Akb:ADpLZOHVSjft92mdcS1A |
| TLSH | T1C8B4022B9B781529D67E077EB0B55104473DA237A447E38D725F18CE2FF73828A1239A |
| Reporter |  malwarelabnet |
| Tags: | exe FormBook xloader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4361229544422.exe
Verdict:
Malicious activity
Analysis date:
2021-11-30 12:47:23 UTC
Tags:
trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
formbook obfuscated packed
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.
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
xloader
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-30 12:30:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
22 of 28 (78.57%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:r0bh loader rat
Behaviour
Enumerates system info in registry
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
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.kjtaxpro.com/r0bh/
Unpacked files
SH256 hash:
7089c6dd9f57c3d0fbcc5f26a8c20596961191efcde1f276259b77df92fb0ed4
MD5 hash:
f553d3f1c69715a93f09a6ba4a747e72
SHA1 hash:
42a95330d37e986ea194e5109215ec5efe8dc460
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
c411c8a9298923c5c9efd658571d4dc13d360a57a6a615b21dd986b9632e2614
MD5 hash:
16641befaffcfb55901213f065a6af53
SHA1 hash:
b1676d7e7e7ea14454fbc25c685e5e43ada09dec
SH256 hash:
b19104b568ca3ddccc2a8d3d10ecddb1ea240171e798dc3a486292cfa14b6365
MD5 hash:
7b0900da932f4ed9630d65b04422736d
SHA1 hash:
6fa340436e3a8e73ae2b3e911f861483183c68ef
SH256 hash:
b37cac9c7d53adb7e52b5e9d83747d11481c66c857b2d9347570d464c113833e
MD5 hash:
265614ba6db16763b0de03bf75d21afd
SHA1 hash:
6ab3cdc4370c3258a066a27070b672606b7d300c
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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: | crime_win32_ransom_avaddon_1 |
|---|---|
| Author: | @VK_Intel |
| Description: | Detects Avaddon ransomware |
| Reference: | https://twitter.com/VK_Intel/status/1300944441390370819 |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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