688851b3d020213958e978a00a32113326d2ee66a6bfc5cceb279e393da2ea86

General

Target

$TEMP/Shortfalls.exe
Size

3.6MB
MD5

1b8ae5c577608b9f780b3ad704679e0a
SHA1

4402007d8e5ca59fe704d543a417c77e39dce762
SHA256

039a6fd68c38bd081e9bca0181187df2653e501b5795d24ad6f895cf81c50bdf
SHA512

9cc97013331ef3d4fbce1d1656ee5a28c193a50eabbf8fd75f2f1a8c57c00d2b32f82bdb35896209e3d7e24babfed607656b6e4a11a910fa099fbc25340587b3
SSDEEP

98304:Gm+wj+XNf1GKVwspuM2ntX8RIx44l6MeNDkVly:262xwssMcX8q/bex2

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\installer\{ac76ba86-7ad7-1033-7b44-a90000000001}\pdffile_8.ico	Shortfalls.exe

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

System Information Discovery
T1082

Modifies registry class 20 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000	Shortfalls.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	Shortfalls.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	Shortfalls.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	Shortfalls.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	Shortfalls.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	Shortfalls.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	Shortfalls.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000	Shortfalls.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	Shortfalls.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	Shortfalls.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}"	Shortfalls.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_Classes\Local Settings	Shortfalls.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0"	Shortfalls.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	Shortfalls.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	Shortfalls.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	Shortfalls.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	Shortfalls.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	Shortfalls.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}"	Shortfalls.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	Shortfalls.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1520	Shortfalls.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1520	Shortfalls.exe
1520	Shortfalls.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 2748	1520	Shortfalls.exe	31
PID 1520 wrote to memory of 2748	1520	Shortfalls.exe	31
PID 1520 wrote to memory of 2748	1520	Shortfalls.exe	31

C:\Users\Admin\AppData\Local\Temp\$TEMP\Shortfalls.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\Shortfalls.exe"
1⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1520 -s 2068
  2⤵
  PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1520-0-0x000007FEF58D3000-0x000007FEF58D4000-memory.dmp

Filesize
4KB

Download
memory/1520-1-0x00000000000A0000-0x0000000000438000-memory.dmp

Filesize
3.6MB

Download
memory/1520-2-0x000000001C6C0000-0x000000001C9AE000-memory.dmp

Filesize
2.9MB

Download
memory/1520-3-0x000007FEF58D0000-0x000007FEF62BC000-memory.dmp

Filesize
9.9MB

Download
memory/1520-4-0x000007FEF58D0000-0x000007FEF62BC000-memory.dmp

Filesize
9.9MB

Download
memory/1520-5-0x000007FEF58D3000-0x000007FEF58D4000-memory.dmp

Filesize
4KB

Download
memory/1520-6-0x000007FEF58D0000-0x000007FEF62BC000-memory.dmp

Filesize
9.9MB

Download
memory/1520-7-0x000000002A570000-0x000000002A852000-memory.dmp

Filesize
2.9MB

Download
memory/1520-8-0x000000002A850000-0x000000002AA56000-memory.dmp

Filesize
2.0MB

Download
memory/1520-9-0x000007FEF58D0000-0x000007FEF62BC000-memory.dmp

Filesize
9.9MB

Download

Analysis

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