c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639

Analysis

max time kernel
152s
max time network
103s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/10/2022, 13:37

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General

Target

c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe
Size

909KB
MD5

49d7aa485f5bc619fab70018135fe746
SHA1

35d6bc56d95159fa0b2052d3476433c4eb44915b
SHA256

c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639
SHA512

30c7d79ff9000b55f300a0cef99433f11cdd2468903ae9892f482c0224891a9eca8cf0cec03b23889488c95e0ef74d686d65622c71f6a89321d50c925b22f8a8
SSDEEP

3072:ngv9bqpaMausTDYBh7SYmdULiiLnEKhf0TTE5jk/RtRlHAkAtzfKtLy8YFqhctm5:KZu5Zh7ydGnEIjagkAtzuNcdtxEUvLIT

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	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Mxef = "C:\\Windows\\SysWOW64\\mfc1405.exe"	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe

Executes dropped EXE 1 IoCs

pid	Process
1664	mfc1405.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/288-56-0x0000000000340000-0x00000000003F1000-memory.dmp	upx
behavioral1/memory/288-59-0x0000000000340000-0x00000000003F1000-memory.dmp	upx
behavioral1/memory/288-60-0x0000000000340000-0x00000000003F1000-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	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe

Deletes itself 1 IoCs

pid	Process
760	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.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	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mfc1405.exe	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe
File opened for modification	C:\Windows\SysWOW64\mfc1405.exe	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe
288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe
1664	mfc1405.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe
Token: SeDebugPrivilege	1664	mfc1405.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 288 wrote to memory of 1664	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe	27
PID 288 wrote to memory of 1664	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe	27
PID 288 wrote to memory of 1664	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe	27
PID 288 wrote to memory of 1664	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe	27
PID 288 wrote to memory of 760	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe	29
PID 288 wrote to memory of 760	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe	29
PID 288 wrote to memory of 760	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe	29
PID 288 wrote to memory of 760	288	c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe	29

C:\Users\Admin\AppData\Local\Temp\c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe
"C:\Users\Admin\AppData\Local\Temp\c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.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:288
- C:\Windows\SysWOW64\mfc1405.exe
  C:\Windows\SysWOW64\mfc1405.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1664
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins7816.bat "C:\Users\Admin\AppData\Local\Temp\c2c12f037eaed386f44de67d0aa4a6c9ebce4cf884f51711f5774d630f59b639.exe"
  2⤵
  - Deletes itself
  PID:760

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~unins7816.bat

Filesize
49B

MD5
9e0a2f5ab30517809b95a1ff1dd98c53

SHA1
5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

SHA256
97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

SHA512
e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

Download Submit
C:\Windows\SysWOW64\mfc1405.exe

Filesize
206KB

MD5
0633dd2a884c269c44bc15458ab6ecd8

SHA1
b8438f681dd9a0d3a20e84c364274b085d403cea

SHA256
ea6b9e7925f4b5795c3528878726eb5317c19744a0b9ab8e7572511f0b111240

SHA512
76ec99b2734bc66b3b5cd4662de7acfd5d8ab80e5e9cbbd91a3eed748ea71c5e5de94ff6cbe44bdb86af8d4659df4eecaed4c5d553d0a79a9d6a5e5bc17c3f9b

Download Submit
C:\Windows\SysWOW64\mfc1405.exe

Filesize
206KB

MD5
0633dd2a884c269c44bc15458ab6ecd8

SHA1
b8438f681dd9a0d3a20e84c364274b085d403cea

SHA256
ea6b9e7925f4b5795c3528878726eb5317c19744a0b9ab8e7572511f0b111240

SHA512
76ec99b2734bc66b3b5cd4662de7acfd5d8ab80e5e9cbbd91a3eed748ea71c5e5de94ff6cbe44bdb86af8d4659df4eecaed4c5d553d0a79a9d6a5e5bc17c3f9b

Download Submit
\Windows\SysWOW64\mfc1405.exe

Filesize
206KB

MD5
0633dd2a884c269c44bc15458ab6ecd8

SHA1
b8438f681dd9a0d3a20e84c364274b085d403cea

SHA256
ea6b9e7925f4b5795c3528878726eb5317c19744a0b9ab8e7572511f0b111240

SHA512
76ec99b2734bc66b3b5cd4662de7acfd5d8ab80e5e9cbbd91a3eed748ea71c5e5de94ff6cbe44bdb86af8d4659df4eecaed4c5d553d0a79a9d6a5e5bc17c3f9b

Download Submit
memory/288-59-0x0000000000340000-0x00000000003F1000-memory.dmp

Filesize
708KB

Download
memory/288-56-0x0000000000340000-0x00000000003F1000-memory.dmp

Filesize
708KB

Download
memory/288-62-0x00000000003A2000-0x00000000003F0000-memory.dmp

Filesize
312KB

Download
memory/288-63-0x0000000000341000-0x00000000003A2000-memory.dmp

Filesize
388KB

Download
memory/288-64-0x00000000003A2000-0x00000000003F0000-memory.dmp

Filesize
312KB

Download
memory/288-65-0x0000000000341000-0x00000000003A2000-memory.dmp

Filesize
388KB

Download
memory/288-61-0x0000000000230000-0x000000000027E000-memory.dmp

Filesize
312KB

Download
memory/288-54-0x0000000000220000-0x0000000000230000-memory.dmp

Filesize
64KB

Download
memory/288-60-0x0000000000340000-0x00000000003F1000-memory.dmp

Filesize
708KB

Download
memory/288-76-0x0000000000341000-0x00000000003A2000-memory.dmp

Filesize
388KB

Download
memory/288-75-0x00000000003A2000-0x00000000003F0000-memory.dmp

Filesize
312KB

Download
memory/288-55-0x0000000075771000-0x0000000075773000-memory.dmp

Filesize
8KB

Download
memory/1664-73-0x0000000073E10000-0x00000000743BB000-memory.dmp

Filesize
5.7MB

Download
memory/1664-74-0x0000000073E10000-0x00000000743BB000-memory.dmp

Filesize
5.7MB

Download