nymaim | 47fc5cf5ff6ae1c791fb938f6226e0b294948224a01a016a0ad239955901b112

General

Target

file.exe
Size

1.2MB
MD5

ed8d8752ec3b43c45613e4914bd12cf7
SHA1

d88c37ed4b28e430c591be82bef298faf69b40eb
SHA256

47fc5cf5ff6ae1c791fb938f6226e0b294948224a01a016a0ad239955901b112
SHA512

13a7140fec3bb5ff4749c60d5dce323928ef11e6f5c4142c76b8b00ce90d1f4b610b112b57b20d830968541f6568ecf184a5b2c9367eac593985d3bc8d42ab9d
SSDEEP

24576:q20IvUWFIQcM4jZPugTYQJy4jZK5r6zw7hoBgXC75ld1qSVpk:q2sWFPv41mgTM4FK5r6Pd1qapk

Score

10^/10

nymaim discovery trojan

Malware Config

Extracted

Family

nymaim

C2

45.139.105.171

85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim
Executes dropped EXE 3 IoCs

Processes:

file.tmpLitFiles137.exe9R6CvwOvV.exe

pid process

4636 file.tmp
2032 LitFiles137.exe
2916 9R6CvwOvV.exe

pid	process
4636	file.tmp
2032	LitFiles137.exe
2916	9R6CvwOvV.exe

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

Processes:

LitFiles137.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	LitFiles137.exe

Loads dropped DLL 1 IoCs

Processes:

file.tmp

pid process

4636 file.tmp
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

pid	process
4636	file.tmp

Drops file in Program Files directory 17 IoCs

Processes:

file.tmp

description	ioc	process
File created	C:\Program Files (x86)\Split Files\is-I5O0P.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-RG2IG.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-5EGC7.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-LI6VH.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Split Files\LitFiles137.exe	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-EG7FE.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-N6VK2.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\is-NSUHR.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-PNCUU.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-M62T4.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-1N69Q.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\is-CARE1.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\unins000.dat	file.tmp
File created	C:\Program Files (x86)\Split Files\is-AE20L.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\is-587S8.tmp	file.tmp
File created	C:\Program Files (x86)\Split Files\language\is-NC0IG.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Split Files\unins000.dat	file.tmp

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

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4604 taskkill.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

LitFiles137.exe

pid process

2032 LitFiles137.exe
2032 LitFiles137.exe
2032 LitFiles137.exe
2032 LitFiles137.exe
2032 LitFiles137.exe
2032 LitFiles137.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4604 taskkill.exe

pid	process
4604	taskkill.exe

pid	process
2032	LitFiles137.exe
2032	LitFiles137.exe
2032	LitFiles137.exe
2032	LitFiles137.exe
2032	LitFiles137.exe
2032	LitFiles137.exe

description	pid	process
Token: SeDebugPrivilege	4604	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exefile.tmpLitFiles137.execmd.exe

description	pid	process	target process
PID 3440 wrote to memory of 4636	3440	file.exe	file.tmp
PID 3440 wrote to memory of 4636	3440	file.exe	file.tmp
PID 3440 wrote to memory of 4636	3440	file.exe	file.tmp
PID 4636 wrote to memory of 2032	4636	file.tmp	LitFiles137.exe
PID 4636 wrote to memory of 2032	4636	file.tmp	LitFiles137.exe
PID 4636 wrote to memory of 2032	4636	file.tmp	LitFiles137.exe
PID 2032 wrote to memory of 2916	2032	LitFiles137.exe	9R6CvwOvV.exe
PID 2032 wrote to memory of 2916	2032	LitFiles137.exe	9R6CvwOvV.exe
PID 2032 wrote to memory of 2916	2032	LitFiles137.exe	9R6CvwOvV.exe
PID 2032 wrote to memory of 3712	2032	LitFiles137.exe	cmd.exe
PID 2032 wrote to memory of 3712	2032	LitFiles137.exe	cmd.exe
PID 2032 wrote to memory of 3712	2032	LitFiles137.exe	cmd.exe
PID 3712 wrote to memory of 4604	3712	cmd.exe	taskkill.exe
PID 3712 wrote to memory of 4604	3712	cmd.exe	taskkill.exe
PID 3712 wrote to memory of 4604	3712	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\is-AP4Q1.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-AP4Q1.tmp\file.tmp" /SL5="$B0170,1059945,212992,C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Program Files (x86)\Split Files\LitFiles137.exe
    "C:\Program Files (x86)\Split Files\LitFiles137.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2032
  - - C:\Users\Admin\AppData\Roaming\{6e1ce040-6208-11ed-b5ce-806e6f6e6963}\9R6CvwOvV.exe
      4⤵
      Executes dropped EXE
      PID:2916
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "LitFiles137.exe" /f & erase "C:\Program Files (x86)\Split Files\LitFiles137.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3712
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "LitFiles137.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\Split Files\LitFiles137.exe

Filesize
1.8MB

MD5
e479acfa3c4ce2e9ddeca5382749b16d

SHA1
2468679a53620613ba5879e8d048f651dbccba35

SHA256
098c835d692addb7cbd38a9ea3778af0ef1f74ff8375536ee1070e2279694176

SHA512
35fe1bd0ce16cd8df3f986204b4cb6d14f48d6576bbebb6bd6261bb422371330e0c8a3668ec67b76863bc32d1c802af891b477b80bc53f37b42b81edb083c731

Download Submit
C:\Program Files (x86)\Split Files\LitFiles137.exe

Filesize
1.8MB

MD5
e479acfa3c4ce2e9ddeca5382749b16d

SHA1
2468679a53620613ba5879e8d048f651dbccba35

SHA256
098c835d692addb7cbd38a9ea3778af0ef1f74ff8375536ee1070e2279694176

SHA512
35fe1bd0ce16cd8df3f986204b4cb6d14f48d6576bbebb6bd6261bb422371330e0c8a3668ec67b76863bc32d1c802af891b477b80bc53f37b42b81edb083c731

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-AP4Q1.tmp\file.tmp

Filesize
695KB

MD5
415533bb40980951c966665cff9e2fe7

SHA1
fce396c8fa01876dd008f22c8be9a9b706f4aaec

SHA256
f688364bb17f03e53de641e7a0b0efefe30ac155fa9fa414a2150204ed9d3734

SHA512
3a8f88fa83e9f8be96fc9a0e8b47536455f50b1c511210d98fa178444b1e5ad1943cc3000e869f6dba4c782b48a3538d0b52d5e29ce3a692636aefc0e52083ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-AP4Q1.tmp\file.tmp

Filesize
695KB

MD5
415533bb40980951c966665cff9e2fe7

SHA1
fce396c8fa01876dd008f22c8be9a9b706f4aaec

SHA256
f688364bb17f03e53de641e7a0b0efefe30ac155fa9fa414a2150204ed9d3734

SHA512
3a8f88fa83e9f8be96fc9a0e8b47536455f50b1c511210d98fa178444b1e5ad1943cc3000e869f6dba4c782b48a3538d0b52d5e29ce3a692636aefc0e52083ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KSD4J.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Roaming\{6e1ce040-6208-11ed-b5ce-806e6f6e6963}\9R6CvwOvV.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{6e1ce040-6208-11ed-b5ce-806e6f6e6963}\9R6CvwOvV.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/2032-143-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/2032-153-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/2032-142-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/2032-156-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/2032-144-0x0000000000400000-0x00000000013C2000-memory.dmp

Filesize
15.8MB

Download
memory/2032-139-0x0000000000000000-mapping.dmp

Download
memory/2032-148-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/2916-145-0x0000000000000000-mapping.dmp

Download
memory/3440-134-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/3440-152-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/3440-132-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/3440-157-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/3712-154-0x0000000000000000-mapping.dmp

Download
memory/4604-155-0x0000000000000000-mapping.dmp

Download
memory/4636-135-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads