28b14399f4973a5eb94ccaa87459b2e342c4babef324963cbf08d11f5b1002c0

General

Target

5b122e462f9785c9355ea925c690946e.exe
Size

583KB
MD5

5b122e462f9785c9355ea925c690946e
SHA1

8d4e26cc65a5b97f02b73a4811a19d7ee891fa96
SHA256

28b14399f4973a5eb94ccaa87459b2e342c4babef324963cbf08d11f5b1002c0
SHA512

1a043239904244936e53bc326976a480edc26941701c965de684997c5301a5d4f49aef3cd182ba2f76a515114e24ddc9081773d1f0ac45ba85ecef0f9407fd91
SSDEEP

12288:beykUj6dav1aMuD6upVUzhV8R3qX7BHzqGoKre+0crnEC15NL:bOUj6UcPDPp6zhekRzXS+XDv15N

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	5b122e462f9785c9355ea925c690946e.exe

Executes dropped EXE 1 IoCs

pid	Process
208	update.exe

Loads dropped DLL 1 IoCs

pid	Process
4908	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4824-0-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/memory/4824-12-0x0000000000400000-0x0000000000427000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\t320062.ini	update.exe
File created	C:\Windows\SysWOW64\rpcss.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\rpcss.dll	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1904	4908	WerFault.exe	35

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
208	update.exe
208	update.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4908	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 208	4824	5b122e462f9785c9355ea925c690946e.exe	37
PID 4824 wrote to memory of 208	4824	5b122e462f9785c9355ea925c690946e.exe	37
PID 4824 wrote to memory of 208	4824	5b122e462f9785c9355ea925c690946e.exe	37
PID 208 wrote to memory of 364	208	update.exe	32
PID 208 wrote to memory of 364	208	update.exe	32
PID 208 wrote to memory of 364	208	update.exe	32
PID 364 wrote to memory of 4908	364	cmd.exe	35
PID 364 wrote to memory of 4908	364	cmd.exe	35
PID 364 wrote to memory of 4908	364	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\5b122e462f9785c9355ea925c690946e.exe
"C:\Users\Admin\AppData\Local\Temp\5b122e462f9785c9355ea925c690946e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Users\Admin\AppData\Local\Temp\update.exe
  "C:\Users\Admin\AppData\Local\Temp\update.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:208

C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\~~e574343.~~~ Install C:\Users\Admin\AppData\Local\Temp\update.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:364
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\~~e574343.~~~ Install C:\Users\Admin\AppData\Local\Temp\update.exe
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4908
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 748
    3⤵
    - Program crash
    PID:1904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4908 -ip 4908
1⤵
PID:656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\update.exe

Filesize
26KB

MD5
93d01beee530f6796129c19e54ac13a3

SHA1
c63a647b0939ecea5a3796670d09ba3c5d888d43

SHA256
7caa8870d407820fd1300dc7a77a052100562f2f24a13e46ad90e5516731855a

SHA512
6373040707d9cc37baf4dba5d3622b4c9ce202dc81b13f4b74235b0a80d3e94d517b7a2390f3be570e5ac1219cbd18943b51c1f861d7ba9aed1e1ecaa99d5cab

Download Submit
C:\Users\Admin\AppData\Local\Temp\~~e574343.~~~

Filesize
71KB

MD5
34c57ed55a9b2a07e5d7d7fbaca3d86c

SHA1
a08f0893463786ae4b23a88a95a3b84a16f6a87e

SHA256
e1896de6ef6c1d66484f3bb73dff872f35699f387849ee74423113fe9e7f4e3a

SHA512
726d6f23a21ed692897a4b6a59aa0091731c71d883deb20857711f41a00ae5de09d16c6e9df49cd201bc5ed28a1178ac913d0e16dc3dd766f22e044cec740436

Download Submit
C:\Users\Admin\AppData\Local\Temp\~~e574343.~~~

Filesize
3KB

MD5
27df52f135d57fb79e0397298df1b79e

SHA1
522dbfbf4427846e028e8a4c438282dbe7be056d

SHA256
ba87cf7e3a708eedead49ab0ea1152e19c168fd4f2ab1e2f736a81807119c34c

SHA512
b17d06eea7d727d959cadf9a1be26f4a990e8320b4a0eb18ef5c231fd849b59bbadb94a3604bd25e89db0419ca1ab02a8def4667cc0428f5b6db3c0ee95cde9a

Download Submit
memory/4824-0-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4824-12-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download

Analysis

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