2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea

Analysis

max time kernel
146s
max time network
83s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
19-10-2022 23:16

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General

Target

2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe
Size

315KB
MD5

a0fef07debbfa9a9386dfb6af1cb0cb0
SHA1

d39ed9c864ea8333c14efc2225b9179b4f659f1b
SHA256

2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea
SHA512

f42cc140758ac9daf3726a3362ccbb9169a33f84cc19bd8484cdae915422390992b4b0594b623757372143076b36942927b191d0a90eaa99ff1ee501ad341f5d
SSDEEP

6144:JQMGu61T+MiqoW1A6Ttjwz7Nx7qD0D6O0h1U/FtEyKpZXFaX9FgX/ztu:zGu4+MjoWzJU7PWD0D6H1mF691cYX/pu

Score

8^/10

discovery evasion persistence trojan upx

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Wmic = "C:\\Windows\\SysWOW64\\mfc120u6.exe"	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe

Executes dropped EXE 1 IoCs

pid	Process
892	mfc120u6.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/784-57-0x0000000000280000-0x000000000031E000-memory.dmp	upx
behavioral1/memory/784-61-0x0000000000280000-0x000000000031E000-memory.dmp	upx
behavioral1/memory/784-60-0x0000000000280000-0x000000000031E000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe

Deletes itself 1 IoCs

pid	Process
1460	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mfc120u6.exe	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe
File opened for modification	C:\Windows\SysWOW64\mfc120u6.exe	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe
784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe
892	mfc120u6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe
Token: SeDebugPrivilege	892	mfc120u6.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 784 wrote to memory of 892	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe	26
PID 784 wrote to memory of 892	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe	26
PID 784 wrote to memory of 892	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe	26
PID 784 wrote to memory of 892	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe	26
PID 784 wrote to memory of 1460	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe	28
PID 784 wrote to memory of 1460	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe	28
PID 784 wrote to memory of 1460	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe	28
PID 784 wrote to memory of 1460	784	2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe	28

C:\Users\Admin\AppData\Local\Temp\2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe
"C:\Users\Admin\AppData\Local\Temp\2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe"
1⤵
- Adds policy Run key to start application
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:784
- C:\Windows\SysWOW64\mfc120u6.exe
  C:\Windows\SysWOW64\mfc120u6.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:892
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins3063.bat "C:\Users\Admin\AppData\Local\Temp\2c35b9e34a1c69afd4fd7cd5e42cc7cc648216c685528a868b4a8d0a88f74fea.exe"
  2⤵
  - Deletes itself
  PID:1460

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\~unins3063.bat

Filesize
49B

MD5
9e0a2f5ab30517809b95a1ff1dd98c53

SHA1
5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

SHA256
97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

SHA512
e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

Download Submit
C:\Windows\SysWOW64\mfc120u6.exe

Filesize
138KB

MD5
2b71daefe780a65bc4aad92ada82bd88

SHA1
f0cc0addee9b7a3992a309e3e1aaf8284e15ac9d

SHA256
69b335df59e9da2736e9c7d77ff42d97aff76f588eb8b25a68f121ceb68203c0

SHA512
46bd9817bb3a9e8fc69537e4e337baff18e3968bf320e68a5e8cfd7d9b6cc13d65d37c2b260b500195b77c86258c787cf36056751902a78870adc7f7d31180c5

Download Submit
C:\Windows\SysWOW64\mfc120u6.exe

Filesize
138KB

MD5
2b71daefe780a65bc4aad92ada82bd88

SHA1
f0cc0addee9b7a3992a309e3e1aaf8284e15ac9d

SHA256
69b335df59e9da2736e9c7d77ff42d97aff76f588eb8b25a68f121ceb68203c0

SHA512
46bd9817bb3a9e8fc69537e4e337baff18e3968bf320e68a5e8cfd7d9b6cc13d65d37c2b260b500195b77c86258c787cf36056751902a78870adc7f7d31180c5

Download Submit
\Windows\SysWOW64\mfc120u6.exe

Filesize
138KB

MD5
2b71daefe780a65bc4aad92ada82bd88

SHA1
f0cc0addee9b7a3992a309e3e1aaf8284e15ac9d

SHA256
69b335df59e9da2736e9c7d77ff42d97aff76f588eb8b25a68f121ceb68203c0

SHA512
46bd9817bb3a9e8fc69537e4e337baff18e3968bf320e68a5e8cfd7d9b6cc13d65d37c2b260b500195b77c86258c787cf36056751902a78870adc7f7d31180c5

Download Submit
memory/784-61-0x0000000000280000-0x000000000031E000-memory.dmp

Filesize
632KB

Download
memory/784-56-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

Filesize
8KB

Download
memory/784-62-0x00000000002DF000-0x000000000031D000-memory.dmp

Filesize
248KB

Download
memory/784-63-0x0000000000281000-0x00000000002DF000-memory.dmp

Filesize
376KB

Download
memory/784-54-0x00000000014E0000-0x00000000015E0000-memory.dmp

Filesize
1024KB

Download
memory/784-74-0x0000000000281000-0x00000000002DF000-memory.dmp

Filesize
376KB

Download
memory/784-57-0x0000000000280000-0x000000000031E000-memory.dmp

Filesize
632KB

Download
memory/784-60-0x0000000000280000-0x000000000031E000-memory.dmp

Filesize
632KB

Download
memory/784-71-0x0000000000281000-0x00000000002DF000-memory.dmp

Filesize
376KB

Download
memory/784-55-0x0000000000220000-0x000000000025E000-memory.dmp

Filesize
248KB

Download
memory/892-72-0x0000000073E60000-0x000000007440B000-memory.dmp

Filesize
5.7MB

Download
memory/892-73-0x0000000073E60000-0x000000007440B000-memory.dmp

Filesize
5.7MB

Download
memory/892-65-0x0000000000000000-mapping.dmp

Download
memory/1460-68-0x0000000000000000-mapping.dmp

Download