b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 19:10

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General

Target

b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe
Size

5.0MB
MD5

35d14a2182e41ce8eaebadbe4be25c8d
SHA1

e18f5386661e622ebe7ce7e4ae64156c1d1576dd
SHA256

b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c
SHA512

e529bf9ede32a4151836cac76a3138a78276ee691ac8dd4922d78b29ddafd1738acaf00c97688b3463fedce54bac0d577d31d58ebd465695f9cdcc10502da240
SSDEEP

49152:sTGkQUu5QZuTtS0rQMYOQ+q8CEeTG4QxTGHQs9KFeMP///e:sKkeWsM0r1QnFK4kKHT0Fe4///e

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2724	a8d8d400

Unexpected DNS network traffic destination 10 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	223.5.5.5
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	223.5.5.5
Destination IP	223.5.5.5
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	114.114.114.114
Destination IP	223.5.5.5

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\Syswow64\a8d8d400	b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	a8d8d400
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015	a8d8d400
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015	a8d8d400
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357	a8d8d400
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357	a8d8d400

UPX packed file 14 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/3028-0-0x0000000000230000-0x00000000002B9000-memory.dmp	upx
behavioral1/files/0x000c000000012250-2.dat	upx
behavioral1/memory/2724-3-0x00000000001E0000-0x0000000000269000-memory.dmp	upx
behavioral1/memory/3028-381-0x0000000000230000-0x00000000002B9000-memory.dmp	upx
behavioral1/memory/2724-431-0x00000000001E0000-0x0000000000269000-memory.dmp	upx
behavioral1/memory/2724-771-0x00000000001E0000-0x0000000000269000-memory.dmp	upx
behavioral1/memory/3028-1520-0x0000000000230000-0x00000000002B9000-memory.dmp	upx
behavioral1/memory/2724-1544-0x00000000001E0000-0x0000000000269000-memory.dmp	upx
behavioral1/memory/3028-1645-0x0000000000230000-0x00000000002B9000-memory.dmp	upx
behavioral1/memory/2724-1655-0x00000000001E0000-0x0000000000269000-memory.dmp	upx
behavioral1/memory/3028-3395-0x0000000000230000-0x00000000002B9000-memory.dmp	upx
behavioral1/memory/3028-3756-0x0000000000230000-0x00000000002B9000-memory.dmp	upx
behavioral1/memory/3028-4081-0x0000000000230000-0x00000000002B9000-memory.dmp	upx
behavioral1/memory/3028-4118-0x0000000000230000-0x00000000002B9000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\2ea2c8	a8d8d400
File opened for modification	C:\Windows\33d728	b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8d8d400
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs	a8d8d400
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	a8d8d400
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	a8d8d400
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBDA460C-71EE-4653-8E4B-7CE97FAB8057}\WpadDecisionReason = "1"	a8d8d400
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-3b-df-9a-20-0a\WpadDecision = "0"	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBDA460C-71EE-4653-8E4B-7CE97FAB8057}	a8d8d400
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs	a8d8d400
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-3b-df-9a-20-0a\WpadDecisionTime = e0c335d1fe14db01	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs	a8d8d400
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	a8d8d400
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	a8d8d400
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBDA460C-71EE-4653-8E4B-7CE97FAB8057}\WpadDecision = "0"	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	a8d8d400
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates	a8d8d400
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBDA460C-71EE-4653-8E4B-7CE97FAB8057}\WpadDecisionTime = e0c335d1fe14db01	a8d8d400
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBDA460C-71EE-4653-8E4B-7CE97FAB8057}\WpadNetworkName = "Network 3"	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates	a8d8d400
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DBDA460C-71EE-4653-8E4B-7CE97FAB8057}\b2-3b-df-9a-20-0a	a8d8d400
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	a8d8d400
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	a8d8d400
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\b2-3b-df-9a-20-0a\WpadDecisionReason = "1"	a8d8d400
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs	a8d8d400
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs	a8d8d400

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2724	a8d8d400
2724	a8d8d400
2724	a8d8d400
2724	a8d8d400
3028	b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe
3028	b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe
3028	b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3028	b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe
Token: SeTcbPrivilege	3028	b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe
Token: SeDebugPrivilege	2724	a8d8d400
Token: SeTcbPrivilege	2724	a8d8d400

C:\Users\Admin\AppData\Local\Temp\b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe
"C:\Users\Admin\AppData\Local\Temp\b10e7878b7184c32b7831836a846c531a841c3d8d167e07b0b335108003d9c0c.exe"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3028

C:\Windows\Syswow64\a8d8d400
C:\Windows\Syswow64\a8d8d400
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\a8d8d400

Filesize
5.0MB

MD5
3d6fcf6ad1034a4ba62df090fe26a22a

SHA1
2f74890d1e9f9527d95727da82f35413e3989879

SHA256
b4f0f36c06fbb13284c87749a218d044892a4c39720ce123fdc00b966ea7f4cd

SHA512
2df837ae515e74aceda2972a96255b6b1c3a929d45728602397b60014bec3423840f1b0b27a0863dd89c76885a722b1e6ec059b9db5ba3fab906bf278fef411b

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
242B

MD5
010aadc99cf6f63f94f19c20f6d3e995

SHA1
dd01e0c5f5fd8723f755e22d7bf7c1aa0999b0e0

SHA256
3b36f950838d77857719837b9975168054d8333b8a55757cba30a531e28fbd1c

SHA512
738226558b36d9a16eb89d68542db570281fb3983ebba8c44b115d44f59fdd33c65820c1bfc955c350560a4cf83fc24577260cb04df8f11e8027ee47e7a52b77

Download Submit
C:\Windows\Temp\Tar52C7.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2724-431-0x00000000001E0000-0x0000000000269000-memory.dmp

Filesize
548KB

Download
memory/2724-3-0x00000000001E0000-0x0000000000269000-memory.dmp

Filesize
548KB

Download
memory/2724-771-0x00000000001E0000-0x0000000000269000-memory.dmp

Filesize
548KB

Download
memory/2724-1544-0x00000000001E0000-0x0000000000269000-memory.dmp

Filesize
548KB

Download
memory/2724-1655-0x00000000001E0000-0x0000000000269000-memory.dmp

Filesize
548KB

Download
memory/3028-381-0x0000000000230000-0x00000000002B9000-memory.dmp

Filesize
548KB

Download
memory/3028-0-0x0000000000230000-0x00000000002B9000-memory.dmp

Filesize
548KB

Download
memory/3028-1520-0x0000000000230000-0x00000000002B9000-memory.dmp

Filesize
548KB

Download
memory/3028-1645-0x0000000000230000-0x00000000002B9000-memory.dmp

Filesize
548KB

Download
memory/3028-3395-0x0000000000230000-0x00000000002B9000-memory.dmp

Filesize
548KB

Download
memory/3028-3756-0x0000000000230000-0x00000000002B9000-memory.dmp

Filesize
548KB

Download
memory/3028-4081-0x0000000000230000-0x00000000002B9000-memory.dmp

Filesize
548KB

Download
memory/3028-4118-0x0000000000230000-0x00000000002B9000-memory.dmp

Filesize
548KB

Download