773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01

General

Target

773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe
Size

129KB
MD5

08560cf9377a9df7bfe138d33b1d5600
SHA1

0dd6f45d9d8a485f942968b32735e29d66d42b64
SHA256

773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01
SHA512

1e45888100094d899cc022eea0f4fca98ec057a5065c13867477fee749db078caf62675c8bcfc2a2f959fc708ab26b1b095f1f16eb01ed5a6ac07072cf1c686f
SSDEEP

3072:6jiSNecg4vWnj23A+KUTgSs12S3NZs1taPK:WXedYA+KUt6/9Zma

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
980	ahui32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c0000000054a8-54.dat	upx
behavioral1/memory/1432-55-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral1/memory/1432-56-0x0000000000220000-0x0000000000291000-memory.dmp	upx
behavioral1/files/0x000c0000000054a8-57.dat	upx
behavioral1/files/0x000c0000000054a8-59.dat	upx
behavioral1/files/0x000c0000000054a8-60.dat	upx
behavioral1/memory/980-61-0x0000000000400000-0x0000000000471000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1432	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe
1432	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ahui32.exe = "C:\\Windows\\system32\\ahui32.exe"	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ahui32.exe	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe
File opened for modification	C:\Windows\SysWOW64\ahui32.exe	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe
File created	C:\Windows\SysWOW64\ahui32.exe	ahui32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1432	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe
Token: SeIncBasePriorityPrivilege	1432	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe
Token: SeIncBasePriorityPrivilege	980	ahui32.exe
Token: SeIncBasePriorityPrivilege	980	ahui32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 980	1432	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe	28
PID 1432 wrote to memory of 980	1432	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe	28
PID 1432 wrote to memory of 980	1432	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe	28
PID 1432 wrote to memory of 980	1432	773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe	28

C:\Users\Admin\AppData\Local\Temp\773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe
"C:\Users\Admin\AppData\Local\Temp\773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SysWOW64\ahui32.exe
  C:\Windows\system32\ahui32.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  PID:980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\ahui32.exe

Filesize
129KB

MD5
08560cf9377a9df7bfe138d33b1d5600

SHA1
0dd6f45d9d8a485f942968b32735e29d66d42b64

SHA256
773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01

SHA512
1e45888100094d899cc022eea0f4fca98ec057a5065c13867477fee749db078caf62675c8bcfc2a2f959fc708ab26b1b095f1f16eb01ed5a6ac07072cf1c686f

Download Submit
C:\Windows\SysWOW64\ahui32.exe

Filesize
129KB

MD5
08560cf9377a9df7bfe138d33b1d5600

SHA1
0dd6f45d9d8a485f942968b32735e29d66d42b64

SHA256
773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01

SHA512
1e45888100094d899cc022eea0f4fca98ec057a5065c13867477fee749db078caf62675c8bcfc2a2f959fc708ab26b1b095f1f16eb01ed5a6ac07072cf1c686f

Download Submit
\Windows\SysWOW64\ahui32.exe

Filesize
129KB

MD5
08560cf9377a9df7bfe138d33b1d5600

SHA1
0dd6f45d9d8a485f942968b32735e29d66d42b64

SHA256
773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01

SHA512
1e45888100094d899cc022eea0f4fca98ec057a5065c13867477fee749db078caf62675c8bcfc2a2f959fc708ab26b1b095f1f16eb01ed5a6ac07072cf1c686f

Download Submit
\Windows\SysWOW64\ahui32.exe

Filesize
129KB

MD5
08560cf9377a9df7bfe138d33b1d5600

SHA1
0dd6f45d9d8a485f942968b32735e29d66d42b64

SHA256
773c6e71a15162aea1f083948d7773229d70ca3f843b0ffc176e609a6c132d01

SHA512
1e45888100094d899cc022eea0f4fca98ec057a5065c13867477fee749db078caf62675c8bcfc2a2f959fc708ab26b1b095f1f16eb01ed5a6ac07072cf1c686f

Download Submit
memory/980-61-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1432-55-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1432-56-0x0000000000220000-0x0000000000291000-memory.dmp

Filesize
452KB

Download

Analysis

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